From 6ba667ba5eb1282b88f82315cee9610e4fa42061 Mon Sep 17 00:00:00 2001
From: Andrea Verlicchi <verlicchia@yoox.net>
Date: Fri, 3 Aug 2018 16:29:32 +0200
Subject: [PATCH] "dist" folder now featuring new amd and iife versions

---
 dist/lazyload.amd.js          | 384 ++++++++++++++++++++++++++++++++++
 dist/lazyload.amd.min.js      |   2 +
 dist/lazyload.amd.min.js.map  |   1 +
 dist/lazyload.es2015.js       |  17 +-
 dist/lazyload.iife.js         | 384 ++++++++++++++++++++++++++++++++++
 dist/lazyload.iife.min.js     |   2 +
 dist/lazyload.iife.min.js.map |   1 +
 dist/lazyload.js              |   3 +-
 dist/lazyload.min.js          |   3 +-
 dist/lazyload.min.js.map      |   1 +
 10 files changed, 782 insertions(+), 16 deletions(-)
 create mode 100644 dist/lazyload.amd.js
 create mode 100644 dist/lazyload.amd.min.js
 create mode 100644 dist/lazyload.amd.min.js.map
 create mode 100644 dist/lazyload.iife.js
 create mode 100644 dist/lazyload.iife.min.js
 create mode 100644 dist/lazyload.iife.min.js.map
 create mode 100644 dist/lazyload.min.js.map

diff --git a/dist/lazyload.amd.js b/dist/lazyload.amd.js
new file mode 100644
index 00000000..58520cb0
--- /dev/null
+++ b/dist/lazyload.amd.js
@@ -0,0 +1,384 @@
+var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
+
+define(function () {
+	'use strict';
+
+	var getDefaultSettings = function getDefaultSettings() {
+		return {
+			elements_selector: "img",
+			container: window,
+			threshold: 300,
+			throttle: 150,
+			data_src: "src",
+			data_srcset: "srcset",
+			data_sizes: "sizes",
+			class_loading: "loading",
+			class_loaded: "loaded",
+			class_error: "error",
+			class_initial: "initial",
+			skip_invisible: true,
+			callback_load: null,
+			callback_error: null,
+			callback_set: null,
+			callback_processed: null,
+			callback_enter: null
+		};
+	};
+
+	var callCallback = function callCallback(callback, argument) {
+		if (callback) {
+			callback(argument);
+		}
+	};
+
+	var getTopOffset = function getTopOffset(element) {
+		return element.getBoundingClientRect().top + window.pageYOffset - element.ownerDocument.documentElement.clientTop;
+	};
+
+	var isBelowViewport = function isBelowViewport(element, container, threshold) {
+		var fold = container === window ? window.innerHeight + window.pageYOffset : getTopOffset(container) + container.offsetHeight;
+		return fold <= getTopOffset(element) - threshold;
+	};
+
+	var getLeftOffset = function getLeftOffset(element) {
+		return element.getBoundingClientRect().left + window.pageXOffset - element.ownerDocument.documentElement.clientLeft;
+	};
+
+	var isAtRightOfViewport = function isAtRightOfViewport(element, container, threshold) {
+		var documentWidth = window.innerWidth;
+		var fold = container === window ? documentWidth + window.pageXOffset : getLeftOffset(container) + documentWidth;
+		return fold <= getLeftOffset(element) - threshold;
+	};
+
+	var isAboveViewport = function isAboveViewport(element, container, threshold) {
+		var fold = container === window ? window.pageYOffset : getTopOffset(container);
+		return fold >= getTopOffset(element) + threshold + element.offsetHeight;
+	};
+
+	var isAtLeftOfViewport = function isAtLeftOfViewport(element, container, threshold) {
+		var fold = container === window ? window.pageXOffset : getLeftOffset(container);
+		return fold >= getLeftOffset(element) + threshold + element.offsetWidth;
+	};
+
+	function isInsideViewport(element, container, threshold) {
+		return !isBelowViewport(element, container, threshold) && !isAboveViewport(element, container, threshold) && !isAtRightOfViewport(element, container, threshold) && !isAtLeftOfViewport(element, container, threshold);
+	}
+
+	/* Creates instance and notifies it through the window element */
+	var createInstance = function createInstance(classObj, options) {
+		var event;
+		var eventString = "LazyLoad::Initialized";
+		var instance = new classObj(options);
+		try {
+			// Works in modern browsers
+			event = new CustomEvent(eventString, { detail: { instance: instance } });
+		} catch (err) {
+			// Works in Internet Explorer (all versions)
+			event = document.createEvent("CustomEvent");
+			event.initCustomEvent(eventString, false, false, { instance: instance });
+		}
+		window.dispatchEvent(event);
+	};
+
+	/* Auto initialization of one or more instances of lazyload, depending on the 
+     options passed in (plain object or an array) */
+	function autoInitialize(classObj, options) {
+		var optsLength = options.length;
+		if (!optsLength) {
+			// Plain object
+			createInstance(classObj, options);
+		} else {
+			// Array of objects
+			for (var i = 0; i < optsLength; i++) {
+				createInstance(classObj, options[i]);
+			}
+		}
+	}
+
+	var dataPrefix = "data-";
+	var processedDataName = "was-processed";
+	var processedDataValue = "true";
+
+	var getData = function getData(element, attribute) {
+		return element.getAttribute(dataPrefix + attribute);
+	};
+
+	var setData = function setData(element, attribute, value) {
+		return element.setAttribute(dataPrefix + attribute, value);
+	};
+
+	var setWasProcessed = function setWasProcessed(element) {
+		return setData(element, processedDataName, processedDataValue);
+	};
+
+	var getWasProcessed = function getWasProcessed(element) {
+		return getData(element, processedDataName) === processedDataValue;
+	};
+
+	var setSourcesInChildren = function setSourcesInChildren(parentTag, attrName, dataAttrName) {
+		for (var i = 0, childTag; childTag = parentTag.children[i]; i += 1) {
+			if (childTag.tagName === "SOURCE") {
+				var attributeValue = getData(childTag, dataAttrName);
+				if (attributeValue) {
+					childTag.setAttribute(attrName, attributeValue);
+				}
+			}
+		}
+	};
+
+	var setAttributeIfNotNullOrEmpty = function setAttributeIfNotNullOrEmpty(element, attrName, value) {
+		if (!value) {
+			return;
+		}
+		element.setAttribute(attrName, value);
+	};
+
+	function setSources(element, settings) {
+		var sizesDataName = settings.data_sizes,
+		    srcsetDataName = settings.data_srcset,
+		    srcDataName = settings.data_src;
+
+		var srcDataValue = getData(element, srcDataName);
+		var tagName = element.tagName;
+		if (tagName === "IMG") {
+			var parent = element.parentNode;
+			if (parent && parent.tagName === "PICTURE") {
+				setSourcesInChildren(parent, "srcset", srcsetDataName);
+			}
+			var sizesDataValue = getData(element, sizesDataName);
+			setAttributeIfNotNullOrEmpty(element, "sizes", sizesDataValue);
+			var srcsetDataValue = getData(element, srcsetDataName);
+			setAttributeIfNotNullOrEmpty(element, "srcset", srcsetDataValue);
+			setAttributeIfNotNullOrEmpty(element, "src", srcDataValue);
+			return;
+		}
+		if (tagName === "IFRAME") {
+			setAttributeIfNotNullOrEmpty(element, "src", srcDataValue);
+			return;
+		}
+		if (tagName === "VIDEO") {
+			setSourcesInChildren(element, "src", srcDataName);
+			setAttributeIfNotNullOrEmpty(element, "src", srcDataValue);
+			return;
+		}
+		if (srcDataValue) {
+			element.style.backgroundImage = "url(\"" + srcDataValue + "\")";
+		}
+	}
+
+	var runningOnBrowser = typeof window !== "undefined";
+
+	var isBot = runningOnBrowser && !("onscroll" in window) || /(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent);
+	var supportsClassList = runningOnBrowser && "classList" in document.createElement("p");
+
+	var addClass = function addClass(element, className) {
+		if (supportsClassList) {
+			element.classList.add(className);
+			return;
+		}
+		element.className += (element.className ? " " : "") + className;
+	};
+
+	var removeClass = function removeClass(element, className) {
+		if (supportsClassList) {
+			element.classList.remove(className);
+			return;
+		}
+		element.className = element.className.replace(new RegExp("(^|\\s+)" + className + "(\\s+|$)"), " ").replace(/^\s+/, "").replace(/\s+$/, "");
+	};
+
+	/*
+  * Constructor
+  */
+
+	var LazyLoad = function LazyLoad(instanceSettings) {
+		this._settings = _extends({}, getDefaultSettings(), instanceSettings);
+		this._queryOriginNode = this._settings.container === window ? document : this._settings.container;
+
+		this._previousLoopTime = 0;
+		this._loopTimeout = null;
+		this._boundHandleScroll = this.handleScroll.bind(this);
+
+		this._isFirstLoop = true;
+		window.addEventListener("resize", this._boundHandleScroll);
+		this.update();
+	};
+
+	LazyLoad.prototype = {
+		_reveal: function _reveal(element, force) {
+			if (!force && getWasProcessed(element)) {
+				return; // element has already been processed and force wasn't true
+			}
+
+			var settings = this._settings;
+
+			var errorCallback = function errorCallback() {
+				/* As this method is asynchronous, it must be protected against external destroy() calls */
+				if (!settings) {
+					return;
+				}
+				element.removeEventListener("load", loadCallback);
+				element.removeEventListener("error", errorCallback);
+				removeClass(element, settings.class_loading);
+				addClass(element, settings.class_error);
+				callCallback(settings.callback_error, element);
+			};
+
+			var loadCallback = function loadCallback() {
+				/* As this method is asynchronous, it must be protected against external destroy() calls */
+				if (!settings) {
+					return;
+				}
+				removeClass(element, settings.class_loading);
+				addClass(element, settings.class_loaded);
+				element.removeEventListener("load", loadCallback);
+				element.removeEventListener("error", errorCallback);
+				callCallback(settings.callback_load, element);
+			};
+
+			callCallback(settings.callback_enter, element);
+			if (["IMG", "IFRAME", "VIDEO"].indexOf(element.tagName) > -1) {
+				element.addEventListener("load", loadCallback);
+				element.addEventListener("error", errorCallback);
+				addClass(element, settings.class_loading);
+			}
+			setSources(element, settings);
+			callCallback(settings.callback_set, element);
+		},
+
+		_loopThroughElements: function _loopThroughElements(forceDownload) {
+			var settings = this._settings,
+			    elements = this._elements,
+			    elementsLength = !elements ? 0 : elements.length;
+			var i = void 0,
+			    processedIndexes = [],
+			    firstLoop = this._isFirstLoop;
+
+			for (i = 0; i < elementsLength; i++) {
+				var element = elements[i];
+				/* If must skip_invisible and element is invisible, skip it */
+				if (settings.skip_invisible && element.offsetParent === null) {
+					continue;
+				}
+
+				if (isBot || forceDownload || isInsideViewport(element, settings.container, settings.threshold)) {
+					if (firstLoop) {
+						addClass(element, settings.class_initial);
+					}
+					/* Start loading the image */
+					this.load(element);
+					/* Marking the element as processed. */
+					processedIndexes.push(i);
+					setWasProcessed(element);
+				}
+			}
+			/* Removing processed elements from this._elements. */
+			while (processedIndexes.length) {
+				elements.splice(processedIndexes.pop(), 1);
+				callCallback(settings.callback_processed, elements.length);
+			}
+			/* Stop listening to scroll event when 0 elements remains */
+			if (elementsLength === 0) {
+				this._stopScrollHandler();
+			}
+			/* Sets isFirstLoop to false */
+			if (firstLoop) {
+				this._isFirstLoop = false;
+			}
+		},
+
+		_purgeElements: function _purgeElements() {
+			var elements = this._elements,
+			    elementsLength = elements.length;
+			var i = void 0,
+			    elementsToPurge = [];
+
+			for (i = 0; i < elementsLength; i++) {
+				var element = elements[i];
+				/* If the element has already been processed, skip it */
+				if (getWasProcessed(element)) {
+					elementsToPurge.push(i);
+				}
+			}
+			/* Removing elements to purge from this._elements. */
+			while (elementsToPurge.length > 0) {
+				elements.splice(elementsToPurge.pop(), 1);
+			}
+		},
+
+		_startScrollHandler: function _startScrollHandler() {
+			if (!this._isHandlingScroll) {
+				this._isHandlingScroll = true;
+				this._settings.container.addEventListener("scroll", this._boundHandleScroll);
+			}
+		},
+
+		_stopScrollHandler: function _stopScrollHandler() {
+			if (this._isHandlingScroll) {
+				this._isHandlingScroll = false;
+				this._settings.container.removeEventListener("scroll", this._boundHandleScroll);
+			}
+		},
+
+		handleScroll: function handleScroll() {
+			var throttle = this._settings.throttle;
+
+			if (throttle !== 0) {
+				var now = Date.now();
+				var remainingTime = throttle - (now - this._previousLoopTime);
+				if (remainingTime <= 0 || remainingTime > throttle) {
+					if (this._loopTimeout) {
+						clearTimeout(this._loopTimeout);
+						this._loopTimeout = null;
+					}
+					this._previousLoopTime = now;
+					this._loopThroughElements();
+				} else if (!this._loopTimeout) {
+					this._loopTimeout = setTimeout(function () {
+						this._previousLoopTime = Date.now();
+						this._loopTimeout = null;
+						this._loopThroughElements();
+					}.bind(this), remainingTime);
+				}
+			} else {
+				this._loopThroughElements();
+			}
+		},
+
+		loadAll: function loadAll() {
+			this._loopThroughElements(true);
+		},
+
+		update: function update() {
+			// Converts to array the nodeset obtained querying the DOM from _queryOriginNode with elements_selector
+			this._elements = Array.prototype.slice.call(this._queryOriginNode.querySelectorAll(this._settings.elements_selector));
+			this._purgeElements();
+			this._loopThroughElements();
+			this._startScrollHandler();
+		},
+
+		destroy: function destroy() {
+			window.removeEventListener("resize", this._boundHandleScroll);
+			if (this._loopTimeout) {
+				clearTimeout(this._loopTimeout);
+				this._loopTimeout = null;
+			}
+			this._stopScrollHandler();
+			this._elements = null;
+			this._queryOriginNode = null;
+			this._settings = null;
+		},
+
+		load: function load(element, force) {
+			this._reveal(element, force);
+		}
+	};
+
+	/* Automatic instances creation if required (useful for async script loading!) */
+	var autoInitOptions = window.lazyLoadOptions;
+	if (runningOnBrowser && autoInitOptions) {
+		autoInitialize(LazyLoad, autoInitOptions);
+	}
+
+	return LazyLoad;
+});
\ No newline at end of file
diff --git a/dist/lazyload.amd.min.js b/dist/lazyload.amd.min.js
new file mode 100644
index 00000000..1140922c
--- /dev/null
+++ b/dist/lazyload.amd.min.js
@@ -0,0 +1,2 @@
+var _extends=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var i in n)Object.prototype.hasOwnProperty.call(n,i)&&(e[i]=n[i])}return e};define(function(){"use strict";function e(e,t,n){return!(s(e,t,n)||a(e,t,n)||l(e,t,n)||c(e,t,n))}function t(e,t){var n=t.data_sizes,i=t.data_srcset,o=t.data_src,s=d(e,o),r=e.tagName;if("IMG"===r){var l=e.parentNode;l&&"PICTURE"===l.tagName&&p(l,"srcset",i);var a=d(e,n);g(e,"sizes",a);var c=d(e,i);return g(e,"srcset",c),void g(e,"src",s)}if("IFRAME"!==r)return"VIDEO"===r?(p(e,"src",o),void g(e,"src",s)):void(s&&(e.style.backgroundImage='url("'+s+'")'));g(e,"src",s)}var n=function(){return{elements_selector:"img",container:window,threshold:300,throttle:150,data_src:"src",data_srcset:"srcset",data_sizes:"sizes",class_loading:"loading",class_loaded:"loaded",class_error:"error",class_initial:"initial",skip_invisible:!0,callback_load:null,callback_error:null,callback_set:null,callback_processed:null,callback_enter:null}},i=function(e,t){e&&e(t)},o=function(e){return e.getBoundingClientRect().top+window.pageYOffset-e.ownerDocument.documentElement.clientTop},s=function(e,t,n){return(t===window?window.innerHeight+window.pageYOffset:o(t)+t.offsetHeight)<=o(e)-n},r=function(e){return e.getBoundingClientRect().left+window.pageXOffset-e.ownerDocument.documentElement.clientLeft},l=function(e,t,n){var i=window.innerWidth;return(t===window?i+window.pageXOffset:r(t)+i)<=r(e)-n},a=function(e,t,n){return(t===window?window.pageYOffset:o(t))>=o(e)+n+e.offsetHeight},c=function(e,t,n){return(t===window?window.pageXOffset:r(t))>=r(e)+n+e.offsetWidth},u=function(e,t){var n,i=new e(t);try{n=new CustomEvent("LazyLoad::Initialized",{detail:{instance:i}})}catch(e){(n=document.createEvent("CustomEvent")).initCustomEvent("LazyLoad::Initialized",!1,!1,{instance:i})}window.dispatchEvent(n)},d=function(e,t){return e.getAttribute("data-"+t)},h=function(e,t,n){return e.setAttribute("data-"+t,n)},_=function(e){return h(e,"was-processed","true")},f=function(e){return"true"===d(e,"was-processed")},p=function(e,t,n){for(var i,o=0;i=e.children[o];o+=1)if("SOURCE"===i.tagName){var s=d(i,n);s&&i.setAttribute(t,s)}},g=function(e,t,n){n&&e.setAttribute(t,n)},m="undefined"!=typeof window,v=m&&!("onscroll"in window)||/(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent),w=m&&"classList"in document.createElement("p"),E=function(e,t){w?e.classList.add(t):e.className+=(e.className?" ":"")+t},b=function(e,t){w?e.classList.remove(t):e.className=e.className.replace(new RegExp("(^|\\s+)"+t+"(\\s+|$)")," ").replace(/^\s+/,"").replace(/\s+$/,"")},L=function(e){this._settings=_extends({},n(),e),this._queryOriginNode=this._settings.container===window?document:this._settings.container,this._previousLoopTime=0,this._loopTimeout=null,this._boundHandleScroll=this.handleScroll.bind(this),this._isFirstLoop=!0,window.addEventListener("resize",this._boundHandleScroll),this.update()};L.prototype={_reveal:function(e,n){if(n||!f(e)){var o=this._settings,s=function t(){o&&(e.removeEventListener("load",r),e.removeEventListener("error",t),b(e,o.class_loading),E(e,o.class_error),i(o.callback_error,e))},r=function t(){o&&(b(e,o.class_loading),E(e,o.class_loaded),e.removeEventListener("load",t),e.removeEventListener("error",s),i(o.callback_load,e))};i(o.callback_enter,e),["IMG","IFRAME","VIDEO"].indexOf(e.tagName)>-1&&(e.addEventListener("load",r),e.addEventListener("error",s),E(e,o.class_loading)),t(e,o),i(o.callback_set,e)}},_loopThroughElements:function(t){var n=this._settings,o=this._elements,s=o?o.length:0,r=void 0,l=[],a=this._isFirstLoop;for(r=0;r<s;r++){var c=o[r];n.skip_invisible&&null===c.offsetParent||(v||t||e(c,n.container,n.threshold))&&(a&&E(c,n.class_initial),this.load(c),l.push(r),_(c))}for(;l.length;)o.splice(l.pop(),1),i(n.callback_processed,o.length);0===s&&this._stopScrollHandler(),a&&(this._isFirstLoop=!1)},_purgeElements:function(){var e=this._elements,t=e.length,n=void 0,i=[];for(n=0;n<t;n++){var o=e[n];f(o)&&i.push(n)}for(;i.length>0;)e.splice(i.pop(),1)},_startScrollHandler:function(){this._isHandlingScroll||(this._isHandlingScroll=!0,this._settings.container.addEventListener("scroll",this._boundHandleScroll))},_stopScrollHandler:function(){this._isHandlingScroll&&(this._isHandlingScroll=!1,this._settings.container.removeEventListener("scroll",this._boundHandleScroll))},handleScroll:function(){var e=this._settings.throttle;if(0!==e){var t=Date.now(),n=e-(t-this._previousLoopTime);n<=0||n>e?(this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._previousLoopTime=t,this._loopThroughElements()):this._loopTimeout||(this._loopTimeout=setTimeout(function(){this._previousLoopTime=Date.now(),this._loopTimeout=null,this._loopThroughElements()}.bind(this),n))}else this._loopThroughElements()},loadAll:function(){this._loopThroughElements(!0)},update:function(){this._elements=Array.prototype.slice.call(this._queryOriginNode.querySelectorAll(this._settings.elements_selector)),this._purgeElements(),this._loopThroughElements(),this._startScrollHandler()},destroy:function(){window.removeEventListener("resize",this._boundHandleScroll),this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._stopScrollHandler(),this._elements=null,this._queryOriginNode=null,this._settings=null},load:function(e,t){this._reveal(e,t)}};var T=window.lazyLoadOptions;return m&&T&&function(e,t){var n=t.length;if(n)for(var i=0;i<n;i++)u(e,t[i]);else u(e,t)}(L,T),L});
+//# sourceMappingURL=lazyload.amd.min.js.map
diff --git a/dist/lazyload.amd.min.js.map b/dist/lazyload.amd.min.js.map
new file mode 100644
index 00000000..a6785bd4
--- /dev/null
+++ b/dist/lazyload.amd.min.js.map
@@ -0,0 +1 @@
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() { 'use strict';\n\nvar getDefaultSettings = () => ({\r\n\telements_selector: \"img\",\r\n\tcontainer: window,\r\n\tthreshold: 300,\r\n\tthrottle: 150,\r\n\tdata_src: \"src\",\r\n\tdata_srcset: \"srcset\",\r\n\tdata_sizes: \"sizes\",\r\n\tclass_loading: \"loading\",\r\n\tclass_loaded: \"loaded\",\r\n\tclass_error: \"error\",\r\n\tclass_initial: \"initial\",\r\n\tskip_invisible: true,\r\n\tcallback_load: null,\r\n\tcallback_error: null,\r\n\tcallback_set: null,\r\n\tcallback_processed: null,\r\n\tcallback_enter: null\r\n});\n\nconst callCallback = function(callback, argument) {\r\n\tif (callback) {\r\n\t\tcallback(argument);\r\n\t}\r\n};\n\nconst getTopOffset = function(element) {\r\n\treturn (\r\n\t\telement.getBoundingClientRect().top +\r\n\t\twindow.pageYOffset -\r\n\t\telement.ownerDocument.documentElement.clientTop\r\n\t);\r\n};\r\n\r\nconst isBelowViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window\r\n\t\t\t? window.innerHeight + window.pageYOffset\r\n\t\t\t: getTopOffset(container) + container.offsetHeight;\r\n\treturn fold <= getTopOffset(element) - threshold;\r\n};\r\n\r\nconst getLeftOffset = function(element) {\r\n\treturn (\r\n\t\telement.getBoundingClientRect().left +\r\n\t\twindow.pageXOffset -\r\n\t\telement.ownerDocument.documentElement.clientLeft\r\n\t);\r\n};\r\n\r\nconst isAtRightOfViewport = function(element, container, threshold) {\r\n\tconst documentWidth = window.innerWidth;\r\n\tconst fold =\r\n\t\tcontainer === window\r\n\t\t\t? documentWidth + window.pageXOffset\r\n\t\t\t: getLeftOffset(container) + documentWidth;\r\n\treturn fold <= getLeftOffset(element) - threshold;\r\n};\r\n\r\nconst isAboveViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window ? window.pageYOffset : getTopOffset(container);\r\n\treturn fold >= getTopOffset(element) + threshold + element.offsetHeight;\r\n};\r\n\r\nconst isAtLeftOfViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window ? window.pageXOffset : getLeftOffset(container);\r\n\treturn fold >= getLeftOffset(element) + threshold + element.offsetWidth;\r\n};\r\n\r\nfunction isInsideViewport(element, container, threshold) {\r\n\treturn (\r\n\t\t!isBelowViewport(element, container, threshold) &&\r\n\t\t!isAboveViewport(element, container, threshold) &&\r\n\t\t!isAtRightOfViewport(element, container, threshold) &&\r\n\t\t!isAtLeftOfViewport(element, container, threshold)\r\n\t);\r\n}\n\n/* Creates instance and notifies it through the window element */\r\nconst createInstance = function (classObj, options) { \r\n    var event;\r\n    let eventString = \"LazyLoad::Initialized\";\r\n    let instance = new classObj(options);\r\n    try {\r\n        // Works in modern browsers\r\n        event = new CustomEvent(eventString, { detail: { instance } });\r\n    } \r\n    catch(err) {\r\n        // Works in Internet Explorer (all versions)\r\n        event = document.createEvent(\"CustomEvent\");\r\n        event.initCustomEvent(eventString, false, false, { instance });\r\n    }\r\n    window.dispatchEvent(event);\r\n};\r\n\r\n/* Auto initialization of one or more instances of lazyload, depending on the \r\n    options passed in (plain object or an array) */\r\nfunction autoInitialize (classObj, options) { \r\n    let optsLength = options.length;\r\n    if (!optsLength) {\r\n        // Plain object\r\n        createInstance(classObj, options);\r\n    }\r\n    else {\r\n        // Array of objects\r\n        for (let i = 0; i < optsLength; i++) {\r\n            createInstance(classObj, options[i]);\r\n        }\r\n    }\r\n}\n\nconst dataPrefix = \"data-\";\r\nconst processedDataName = \"was-processed\";\r\nconst processedDataValue = \"true\";\r\n\r\nconst getData = (element, attribute) => {\r\n\treturn element.getAttribute(dataPrefix + attribute);\r\n};\r\n\r\nconst setData = (element, attribute, value) => {\r\n\treturn element.setAttribute(dataPrefix + attribute, value);\r\n};\r\n\r\nconst setWasProcessed = element =>\r\n\tsetData(element, processedDataName, processedDataValue);\r\n\r\nconst getWasProcessed = element =>\r\n\tgetData(element, processedDataName) === processedDataValue;\n\nconst setSourcesInChildren = function(parentTag, attrName, dataAttrName) {\r\n\tfor (let i = 0, childTag; (childTag = parentTag.children[i]); i += 1) {\r\n\t\tif (childTag.tagName === \"SOURCE\") {\r\n\t\t\tlet attributeValue = getData(childTag, dataAttrName);\r\n\t\t\tif (attributeValue) {\r\n\t\t\t\tchildTag.setAttribute(attrName, attributeValue);\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n};\r\n\r\nconst setAttributeIfNotNullOrEmpty = function(element, attrName, value) {\r\n\tif (!value) {\r\n\t\treturn;\r\n\t}\r\n\telement.setAttribute(attrName, value);\r\n};\r\n\r\nfunction setSources(element, settings) {\r\n\tconst {\r\n\t\tdata_sizes: sizesDataName,\r\n\t\tdata_srcset: srcsetDataName,\r\n\t\tdata_src: srcDataName\r\n\t} = settings;\r\n\tconst srcDataValue = getData(element, srcDataName);\r\n\tconst tagName = element.tagName;\r\n\tif (tagName === \"IMG\") {\r\n\t\tconst parent = element.parentNode;\r\n\t\tif (parent && parent.tagName === \"PICTURE\") {\r\n\t\t\tsetSourcesInChildren(parent, \"srcset\", srcsetDataName);\r\n\t\t}\r\n\t\tconst sizesDataValue = getData(element, sizesDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"sizes\", sizesDataValue);\r\n\t\tconst srcsetDataValue = getData(element, srcsetDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"srcset\", srcsetDataValue);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (tagName === \"IFRAME\") {\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (tagName === \"VIDEO\") {\r\n\t\tsetSourcesInChildren(element, \"src\", srcDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (srcDataValue) {\r\n\t\telement.style.backgroundImage = `url(\"${srcDataValue}\")`;\r\n\t}\r\n}\n\nconst runningOnBrowser = typeof window !== \"undefined\";\r\n\r\nconst isBot =\r\n\t(runningOnBrowser && !(\"onscroll\" in window)) ||\r\n\t/(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent);\r\nconst supportsClassList =\r\n\trunningOnBrowser && \"classList\" in document.createElement(\"p\");\n\nconst addClass = (element, className) => {\r\n    if (supportsClassList) {\r\n        element.classList.add(className);\r\n        return;\r\n    }\r\n    element.className += (element.className ? \" \" : \"\") + className;\r\n};\r\n\r\nconst removeClass = (element, className) => {\r\n    if (supportsClassList) {\r\n        element.classList.remove(className);\r\n        return;\r\n    }\r\n    element.className = element.className.replace(new RegExp(\"(^|\\\\s+)\" + className + \"(\\\\s+|$)\"), \" \").replace(/^\\s+/, \"\").replace(/\\s+$/, \"\");\r\n};\n\n/*\r\n * Constructor\r\n */\r\n\r\nconst LazyLoad = function(instanceSettings) {\r\n\tthis._settings = Object.assign({}, getDefaultSettings(), instanceSettings);\r\n\tthis._queryOriginNode =\r\n\t\tthis._settings.container === window\r\n\t\t\t? document\r\n\t\t\t: this._settings.container;\r\n\r\n\tthis._previousLoopTime = 0;\r\n\tthis._loopTimeout = null;\r\n\tthis._boundHandleScroll = this.handleScroll.bind(this);\r\n\r\n\tthis._isFirstLoop = true;\r\n\twindow.addEventListener(\"resize\", this._boundHandleScroll);\r\n\tthis.update();\r\n};\r\n\r\nLazyLoad.prototype = {\r\n\t_reveal: function(element, force) {\r\n\t\tif (!force && getWasProcessed(element)) {\r\n\t\t\treturn; // element has already been processed and force wasn't true\r\n\t\t}\r\n\r\n\t\tconst settings = this._settings;\r\n\r\n\t\tconst errorCallback = function() {\r\n\t\t\t/* As this method is asynchronous, it must be protected against external destroy() calls */\r\n\t\t\tif (!settings) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t\telement.removeEventListener(\"load\", loadCallback);\r\n\t\t\telement.removeEventListener(\"error\", errorCallback);\r\n\t\t\tremoveClass(element, settings.class_loading);\r\n\t\t\taddClass(element, settings.class_error);\r\n\t\t\tcallCallback(settings.callback_error, element);\r\n\t\t};\r\n\r\n\t\tconst loadCallback = function() {\r\n\t\t\t/* As this method is asynchronous, it must be protected against external destroy() calls */\r\n\t\t\tif (!settings) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t\tremoveClass(element, settings.class_loading);\r\n\t\t\taddClass(element, settings.class_loaded);\r\n\t\t\telement.removeEventListener(\"load\", loadCallback);\r\n\t\t\telement.removeEventListener(\"error\", errorCallback);\r\n\t\t\tcallCallback(settings.callback_load, element);\r\n\t\t};\r\n\r\n\t\tcallCallback(settings.callback_enter, element);\r\n\t\tif ([\"IMG\", \"IFRAME\", \"VIDEO\"].indexOf(element.tagName) > -1) {\r\n\t\t\telement.addEventListener(\"load\", loadCallback);\r\n\t\t\telement.addEventListener(\"error\", errorCallback);\r\n\t\t\taddClass(element, settings.class_loading);\r\n\t\t}\r\n\t\tsetSources(element, settings);\r\n\t\tcallCallback(settings.callback_set, element);\r\n\t},\r\n\r\n\t_loopThroughElements: function(forceDownload) {\r\n\t\tconst settings = this._settings,\r\n\t\t\telements = this._elements,\r\n\t\t\telementsLength = !elements ? 0 : elements.length;\r\n\t\tlet i,\r\n\t\t\tprocessedIndexes = [],\r\n\t\t\tfirstLoop = this._isFirstLoop;\r\n\r\n\t\tfor (i = 0; i < elementsLength; i++) {\r\n\t\t\tlet element = elements[i];\r\n\t\t\t/* If must skip_invisible and element is invisible, skip it */\r\n\t\t\tif (settings.skip_invisible && element.offsetParent === null) {\r\n\t\t\t\tcontinue;\r\n\t\t\t}\r\n\r\n\t\t\tif (\r\n\t\t\t\tisBot ||\r\n\t\t\t\tforceDownload ||\r\n\t\t\t\tisInsideViewport(\r\n\t\t\t\t\telement,\r\n\t\t\t\t\tsettings.container,\r\n\t\t\t\t\tsettings.threshold\r\n\t\t\t\t)\r\n\t\t\t) {\r\n\t\t\t\tif (firstLoop) {\r\n\t\t\t\t\taddClass(element, settings.class_initial);\r\n\t\t\t\t}\r\n\t\t\t\t/* Start loading the image */\r\n\t\t\t\tthis.load(element);\r\n\t\t\t\t/* Marking the element as processed. */\r\n\t\t\t\tprocessedIndexes.push(i);\r\n\t\t\t\tsetWasProcessed(element);\r\n\t\t\t}\r\n\t\t}\r\n\t\t/* Removing processed elements from this._elements. */\r\n\t\twhile (processedIndexes.length) {\r\n\t\t\telements.splice(processedIndexes.pop(), 1);\r\n\t\t\tcallCallback(settings.callback_processed, elements.length);\r\n\t\t}\r\n\t\t/* Stop listening to scroll event when 0 elements remains */\r\n\t\tif (elementsLength === 0) {\r\n\t\t\tthis._stopScrollHandler();\r\n\t\t}\r\n\t\t/* Sets isFirstLoop to false */\r\n\t\tif (firstLoop) {\r\n\t\t\tthis._isFirstLoop = false;\r\n\t\t}\r\n\t},\r\n\r\n\t_purgeElements: function() {\r\n\t\tconst elements = this._elements,\r\n\t\t\telementsLength = elements.length;\r\n\t\tlet i,\r\n\t\t\telementsToPurge = [];\r\n\r\n\t\tfor (i = 0; i < elementsLength; i++) {\r\n\t\t\tlet element = elements[i];\r\n\t\t\t/* If the element has already been processed, skip it */\r\n\t\t\tif (getWasProcessed(element)) {\r\n\t\t\t\telementsToPurge.push(i);\r\n\t\t\t}\r\n\t\t}\r\n\t\t/* Removing elements to purge from this._elements. */\r\n\t\twhile (elementsToPurge.length > 0) {\r\n\t\t\telements.splice(elementsToPurge.pop(), 1);\r\n\t\t}\r\n\t},\r\n\r\n\t_startScrollHandler: function() {\r\n\t\tif (!this._isHandlingScroll) {\r\n\t\t\tthis._isHandlingScroll = true;\r\n\t\t\tthis._settings.container.addEventListener(\r\n\t\t\t\t\"scroll\",\r\n\t\t\t\tthis._boundHandleScroll\r\n\t\t\t);\r\n\t\t}\r\n\t},\r\n\r\n\t_stopScrollHandler: function() {\r\n\t\tif (this._isHandlingScroll) {\r\n\t\t\tthis._isHandlingScroll = false;\r\n\t\t\tthis._settings.container.removeEventListener(\r\n\t\t\t\t\"scroll\",\r\n\t\t\t\tthis._boundHandleScroll\r\n\t\t\t);\r\n\t\t}\r\n\t},\r\n\r\n\thandleScroll: function() {\r\n\t\tconst throttle = this._settings.throttle;\r\n\r\n\t\tif (throttle !== 0) {\r\n\t\t\tlet now = Date.now();\r\n\t\t\tlet remainingTime = throttle - (now - this._previousLoopTime);\r\n\t\t\tif (remainingTime <= 0 || remainingTime > throttle) {\r\n\t\t\t\tif (this._loopTimeout) {\r\n\t\t\t\t\tclearTimeout(this._loopTimeout);\r\n\t\t\t\t\tthis._loopTimeout = null;\r\n\t\t\t\t}\r\n\t\t\t\tthis._previousLoopTime = now;\r\n\t\t\t\tthis._loopThroughElements();\r\n\t\t\t} else if (!this._loopTimeout) {\r\n\t\t\t\tthis._loopTimeout = setTimeout(\r\n\t\t\t\t\tfunction() {\r\n\t\t\t\t\t\tthis._previousLoopTime = Date.now();\r\n\t\t\t\t\t\tthis._loopTimeout = null;\r\n\t\t\t\t\t\tthis._loopThroughElements();\r\n\t\t\t\t\t}.bind(this),\r\n\t\t\t\t\tremainingTime\r\n\t\t\t\t);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tthis._loopThroughElements();\r\n\t\t}\r\n\t},\r\n\r\n\tloadAll: function() {\r\n\t\tthis._loopThroughElements(true);\r\n\t},\r\n\r\n\tupdate: function() {\r\n\t\t// Converts to array the nodeset obtained querying the DOM from _queryOriginNode with elements_selector\r\n\t\tthis._elements = Array.prototype.slice.call(\r\n\t\t\tthis._queryOriginNode.querySelectorAll(\r\n\t\t\t\tthis._settings.elements_selector\r\n\t\t\t)\r\n\t\t);\r\n\t\tthis._purgeElements();\r\n\t\tthis._loopThroughElements();\r\n\t\tthis._startScrollHandler();\r\n\t},\r\n\r\n\tdestroy: function() {\r\n\t\twindow.removeEventListener(\"resize\", this._boundHandleScroll);\r\n\t\tif (this._loopTimeout) {\r\n\t\t\tclearTimeout(this._loopTimeout);\r\n\t\t\tthis._loopTimeout = null;\r\n\t\t}\r\n\t\tthis._stopScrollHandler();\r\n\t\tthis._elements = null;\r\n\t\tthis._queryOriginNode = null;\r\n\t\tthis._settings = null;\r\n\t},\r\n\r\n\tload: function(element, force) {\r\n\t\tthis._reveal(element, force);\r\n\t}\r\n};\r\n\r\n/* Automatic instances creation if required (useful for async script loading!) */\r\nlet autoInitOptions = window.lazyLoadOptions;\r\nif (runningOnBrowser && autoInitOptions) {\r\n\tautoInitialize(LazyLoad, autoInitOptions);\r\n}\n\nreturn LazyLoad;\n\n});\n"]}
\ No newline at end of file
diff --git a/dist/lazyload.es2015.js b/dist/lazyload.es2015.js
index 9b1db983..6bfc2778 100644
--- a/dist/lazyload.es2015.js
+++ b/dist/lazyload.es2015.js
@@ -1,9 +1,3 @@
-(function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-	typeof define === 'function' && define.amd ? define(factory) :
-	(global.LazyLoad = factory());
-}(this, (function () { 'use strict';
-
 var getDefaultSettings = () => ({
 	elements_selector: "img",
 	container: window,
@@ -189,12 +183,11 @@ function setSources(element, settings) {
 
 const runningOnBrowser = typeof window !== "undefined";
 
-const supportsClassList =
-	runningOnBrowser && "classList" in document.createElement("p");
-
 const isBot =
 	(runningOnBrowser && !("onscroll" in window)) ||
-	/glebot|bingbot|crawler|spider|robot|crawling/i.test(navigator.userAgent);
+	/(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent);
+const supportsClassList =
+	runningOnBrowser && "classList" in document.createElement("p");
 
 const addClass = (element, className) => {
     if (supportsClassList) {
@@ -429,6 +422,4 @@ if (runningOnBrowser && autoInitOptions) {
 	autoInitialize(LazyLoad, autoInitOptions);
 }
 
-return LazyLoad;
-
-})));
+export default LazyLoad;
diff --git a/dist/lazyload.iife.js b/dist/lazyload.iife.js
new file mode 100644
index 00000000..803b13eb
--- /dev/null
+++ b/dist/lazyload.iife.js
@@ -0,0 +1,384 @@
+var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
+
+var LazyLoad = function () {
+	'use strict';
+
+	var getDefaultSettings = function getDefaultSettings() {
+		return {
+			elements_selector: "img",
+			container: window,
+			threshold: 300,
+			throttle: 150,
+			data_src: "src",
+			data_srcset: "srcset",
+			data_sizes: "sizes",
+			class_loading: "loading",
+			class_loaded: "loaded",
+			class_error: "error",
+			class_initial: "initial",
+			skip_invisible: true,
+			callback_load: null,
+			callback_error: null,
+			callback_set: null,
+			callback_processed: null,
+			callback_enter: null
+		};
+	};
+
+	var callCallback = function callCallback(callback, argument) {
+		if (callback) {
+			callback(argument);
+		}
+	};
+
+	var getTopOffset = function getTopOffset(element) {
+		return element.getBoundingClientRect().top + window.pageYOffset - element.ownerDocument.documentElement.clientTop;
+	};
+
+	var isBelowViewport = function isBelowViewport(element, container, threshold) {
+		var fold = container === window ? window.innerHeight + window.pageYOffset : getTopOffset(container) + container.offsetHeight;
+		return fold <= getTopOffset(element) - threshold;
+	};
+
+	var getLeftOffset = function getLeftOffset(element) {
+		return element.getBoundingClientRect().left + window.pageXOffset - element.ownerDocument.documentElement.clientLeft;
+	};
+
+	var isAtRightOfViewport = function isAtRightOfViewport(element, container, threshold) {
+		var documentWidth = window.innerWidth;
+		var fold = container === window ? documentWidth + window.pageXOffset : getLeftOffset(container) + documentWidth;
+		return fold <= getLeftOffset(element) - threshold;
+	};
+
+	var isAboveViewport = function isAboveViewport(element, container, threshold) {
+		var fold = container === window ? window.pageYOffset : getTopOffset(container);
+		return fold >= getTopOffset(element) + threshold + element.offsetHeight;
+	};
+
+	var isAtLeftOfViewport = function isAtLeftOfViewport(element, container, threshold) {
+		var fold = container === window ? window.pageXOffset : getLeftOffset(container);
+		return fold >= getLeftOffset(element) + threshold + element.offsetWidth;
+	};
+
+	function isInsideViewport(element, container, threshold) {
+		return !isBelowViewport(element, container, threshold) && !isAboveViewport(element, container, threshold) && !isAtRightOfViewport(element, container, threshold) && !isAtLeftOfViewport(element, container, threshold);
+	}
+
+	/* Creates instance and notifies it through the window element */
+	var createInstance = function createInstance(classObj, options) {
+		var event;
+		var eventString = "LazyLoad::Initialized";
+		var instance = new classObj(options);
+		try {
+			// Works in modern browsers
+			event = new CustomEvent(eventString, { detail: { instance: instance } });
+		} catch (err) {
+			// Works in Internet Explorer (all versions)
+			event = document.createEvent("CustomEvent");
+			event.initCustomEvent(eventString, false, false, { instance: instance });
+		}
+		window.dispatchEvent(event);
+	};
+
+	/* Auto initialization of one or more instances of lazyload, depending on the 
+     options passed in (plain object or an array) */
+	function autoInitialize(classObj, options) {
+		var optsLength = options.length;
+		if (!optsLength) {
+			// Plain object
+			createInstance(classObj, options);
+		} else {
+			// Array of objects
+			for (var i = 0; i < optsLength; i++) {
+				createInstance(classObj, options[i]);
+			}
+		}
+	}
+
+	var dataPrefix = "data-";
+	var processedDataName = "was-processed";
+	var processedDataValue = "true";
+
+	var getData = function getData(element, attribute) {
+		return element.getAttribute(dataPrefix + attribute);
+	};
+
+	var setData = function setData(element, attribute, value) {
+		return element.setAttribute(dataPrefix + attribute, value);
+	};
+
+	var setWasProcessed = function setWasProcessed(element) {
+		return setData(element, processedDataName, processedDataValue);
+	};
+
+	var getWasProcessed = function getWasProcessed(element) {
+		return getData(element, processedDataName) === processedDataValue;
+	};
+
+	var setSourcesInChildren = function setSourcesInChildren(parentTag, attrName, dataAttrName) {
+		for (var i = 0, childTag; childTag = parentTag.children[i]; i += 1) {
+			if (childTag.tagName === "SOURCE") {
+				var attributeValue = getData(childTag, dataAttrName);
+				if (attributeValue) {
+					childTag.setAttribute(attrName, attributeValue);
+				}
+			}
+		}
+	};
+
+	var setAttributeIfNotNullOrEmpty = function setAttributeIfNotNullOrEmpty(element, attrName, value) {
+		if (!value) {
+			return;
+		}
+		element.setAttribute(attrName, value);
+	};
+
+	function setSources(element, settings) {
+		var sizesDataName = settings.data_sizes,
+		    srcsetDataName = settings.data_srcset,
+		    srcDataName = settings.data_src;
+
+		var srcDataValue = getData(element, srcDataName);
+		var tagName = element.tagName;
+		if (tagName === "IMG") {
+			var parent = element.parentNode;
+			if (parent && parent.tagName === "PICTURE") {
+				setSourcesInChildren(parent, "srcset", srcsetDataName);
+			}
+			var sizesDataValue = getData(element, sizesDataName);
+			setAttributeIfNotNullOrEmpty(element, "sizes", sizesDataValue);
+			var srcsetDataValue = getData(element, srcsetDataName);
+			setAttributeIfNotNullOrEmpty(element, "srcset", srcsetDataValue);
+			setAttributeIfNotNullOrEmpty(element, "src", srcDataValue);
+			return;
+		}
+		if (tagName === "IFRAME") {
+			setAttributeIfNotNullOrEmpty(element, "src", srcDataValue);
+			return;
+		}
+		if (tagName === "VIDEO") {
+			setSourcesInChildren(element, "src", srcDataName);
+			setAttributeIfNotNullOrEmpty(element, "src", srcDataValue);
+			return;
+		}
+		if (srcDataValue) {
+			element.style.backgroundImage = "url(\"" + srcDataValue + "\")";
+		}
+	}
+
+	var runningOnBrowser = typeof window !== "undefined";
+
+	var isBot = runningOnBrowser && !("onscroll" in window) || /(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent);
+	var supportsClassList = runningOnBrowser && "classList" in document.createElement("p");
+
+	var addClass = function addClass(element, className) {
+		if (supportsClassList) {
+			element.classList.add(className);
+			return;
+		}
+		element.className += (element.className ? " " : "") + className;
+	};
+
+	var removeClass = function removeClass(element, className) {
+		if (supportsClassList) {
+			element.classList.remove(className);
+			return;
+		}
+		element.className = element.className.replace(new RegExp("(^|\\s+)" + className + "(\\s+|$)"), " ").replace(/^\s+/, "").replace(/\s+$/, "");
+	};
+
+	/*
+  * Constructor
+  */
+
+	var LazyLoad = function LazyLoad(instanceSettings) {
+		this._settings = _extends({}, getDefaultSettings(), instanceSettings);
+		this._queryOriginNode = this._settings.container === window ? document : this._settings.container;
+
+		this._previousLoopTime = 0;
+		this._loopTimeout = null;
+		this._boundHandleScroll = this.handleScroll.bind(this);
+
+		this._isFirstLoop = true;
+		window.addEventListener("resize", this._boundHandleScroll);
+		this.update();
+	};
+
+	LazyLoad.prototype = {
+		_reveal: function _reveal(element, force) {
+			if (!force && getWasProcessed(element)) {
+				return; // element has already been processed and force wasn't true
+			}
+
+			var settings = this._settings;
+
+			var errorCallback = function errorCallback() {
+				/* As this method is asynchronous, it must be protected against external destroy() calls */
+				if (!settings) {
+					return;
+				}
+				element.removeEventListener("load", loadCallback);
+				element.removeEventListener("error", errorCallback);
+				removeClass(element, settings.class_loading);
+				addClass(element, settings.class_error);
+				callCallback(settings.callback_error, element);
+			};
+
+			var loadCallback = function loadCallback() {
+				/* As this method is asynchronous, it must be protected against external destroy() calls */
+				if (!settings) {
+					return;
+				}
+				removeClass(element, settings.class_loading);
+				addClass(element, settings.class_loaded);
+				element.removeEventListener("load", loadCallback);
+				element.removeEventListener("error", errorCallback);
+				callCallback(settings.callback_load, element);
+			};
+
+			callCallback(settings.callback_enter, element);
+			if (["IMG", "IFRAME", "VIDEO"].indexOf(element.tagName) > -1) {
+				element.addEventListener("load", loadCallback);
+				element.addEventListener("error", errorCallback);
+				addClass(element, settings.class_loading);
+			}
+			setSources(element, settings);
+			callCallback(settings.callback_set, element);
+		},
+
+		_loopThroughElements: function _loopThroughElements(forceDownload) {
+			var settings = this._settings,
+			    elements = this._elements,
+			    elementsLength = !elements ? 0 : elements.length;
+			var i = void 0,
+			    processedIndexes = [],
+			    firstLoop = this._isFirstLoop;
+
+			for (i = 0; i < elementsLength; i++) {
+				var element = elements[i];
+				/* If must skip_invisible and element is invisible, skip it */
+				if (settings.skip_invisible && element.offsetParent === null) {
+					continue;
+				}
+
+				if (isBot || forceDownload || isInsideViewport(element, settings.container, settings.threshold)) {
+					if (firstLoop) {
+						addClass(element, settings.class_initial);
+					}
+					/* Start loading the image */
+					this.load(element);
+					/* Marking the element as processed. */
+					processedIndexes.push(i);
+					setWasProcessed(element);
+				}
+			}
+			/* Removing processed elements from this._elements. */
+			while (processedIndexes.length) {
+				elements.splice(processedIndexes.pop(), 1);
+				callCallback(settings.callback_processed, elements.length);
+			}
+			/* Stop listening to scroll event when 0 elements remains */
+			if (elementsLength === 0) {
+				this._stopScrollHandler();
+			}
+			/* Sets isFirstLoop to false */
+			if (firstLoop) {
+				this._isFirstLoop = false;
+			}
+		},
+
+		_purgeElements: function _purgeElements() {
+			var elements = this._elements,
+			    elementsLength = elements.length;
+			var i = void 0,
+			    elementsToPurge = [];
+
+			for (i = 0; i < elementsLength; i++) {
+				var element = elements[i];
+				/* If the element has already been processed, skip it */
+				if (getWasProcessed(element)) {
+					elementsToPurge.push(i);
+				}
+			}
+			/* Removing elements to purge from this._elements. */
+			while (elementsToPurge.length > 0) {
+				elements.splice(elementsToPurge.pop(), 1);
+			}
+		},
+
+		_startScrollHandler: function _startScrollHandler() {
+			if (!this._isHandlingScroll) {
+				this._isHandlingScroll = true;
+				this._settings.container.addEventListener("scroll", this._boundHandleScroll);
+			}
+		},
+
+		_stopScrollHandler: function _stopScrollHandler() {
+			if (this._isHandlingScroll) {
+				this._isHandlingScroll = false;
+				this._settings.container.removeEventListener("scroll", this._boundHandleScroll);
+			}
+		},
+
+		handleScroll: function handleScroll() {
+			var throttle = this._settings.throttle;
+
+			if (throttle !== 0) {
+				var now = Date.now();
+				var remainingTime = throttle - (now - this._previousLoopTime);
+				if (remainingTime <= 0 || remainingTime > throttle) {
+					if (this._loopTimeout) {
+						clearTimeout(this._loopTimeout);
+						this._loopTimeout = null;
+					}
+					this._previousLoopTime = now;
+					this._loopThroughElements();
+				} else if (!this._loopTimeout) {
+					this._loopTimeout = setTimeout(function () {
+						this._previousLoopTime = Date.now();
+						this._loopTimeout = null;
+						this._loopThroughElements();
+					}.bind(this), remainingTime);
+				}
+			} else {
+				this._loopThroughElements();
+			}
+		},
+
+		loadAll: function loadAll() {
+			this._loopThroughElements(true);
+		},
+
+		update: function update() {
+			// Converts to array the nodeset obtained querying the DOM from _queryOriginNode with elements_selector
+			this._elements = Array.prototype.slice.call(this._queryOriginNode.querySelectorAll(this._settings.elements_selector));
+			this._purgeElements();
+			this._loopThroughElements();
+			this._startScrollHandler();
+		},
+
+		destroy: function destroy() {
+			window.removeEventListener("resize", this._boundHandleScroll);
+			if (this._loopTimeout) {
+				clearTimeout(this._loopTimeout);
+				this._loopTimeout = null;
+			}
+			this._stopScrollHandler();
+			this._elements = null;
+			this._queryOriginNode = null;
+			this._settings = null;
+		},
+
+		load: function load(element, force) {
+			this._reveal(element, force);
+		}
+	};
+
+	/* Automatic instances creation if required (useful for async script loading!) */
+	var autoInitOptions = window.lazyLoadOptions;
+	if (runningOnBrowser && autoInitOptions) {
+		autoInitialize(LazyLoad, autoInitOptions);
+	}
+
+	return LazyLoad;
+}();
\ No newline at end of file
diff --git a/dist/lazyload.iife.min.js b/dist/lazyload.iife.min.js
new file mode 100644
index 00000000..0850b1de
--- /dev/null
+++ b/dist/lazyload.iife.min.js
@@ -0,0 +1,2 @@
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diff --git a/dist/lazyload.iife.min.js.map b/dist/lazyload.iife.min.js.map
new file mode 100644
index 00000000..6f0b28b9
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+++ b/dist/lazyload.iife.min.js.map
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LazyLoad = (function () {\n'use strict';\n\nvar getDefaultSettings = () => ({\r\n\telements_selector: \"img\",\r\n\tcontainer: window,\r\n\tthreshold: 300,\r\n\tthrottle: 150,\r\n\tdata_src: \"src\",\r\n\tdata_srcset: \"srcset\",\r\n\tdata_sizes: \"sizes\",\r\n\tclass_loading: \"loading\",\r\n\tclass_loaded: \"loaded\",\r\n\tclass_error: \"error\",\r\n\tclass_initial: \"initial\",\r\n\tskip_invisible: true,\r\n\tcallback_load: null,\r\n\tcallback_error: null,\r\n\tcallback_set: null,\r\n\tcallback_processed: null,\r\n\tcallback_enter: null\r\n});\n\nconst callCallback = function(callback, argument) {\r\n\tif (callback) {\r\n\t\tcallback(argument);\r\n\t}\r\n};\n\nconst getTopOffset = function(element) {\r\n\treturn (\r\n\t\telement.getBoundingClientRect().top +\r\n\t\twindow.pageYOffset -\r\n\t\telement.ownerDocument.documentElement.clientTop\r\n\t);\r\n};\r\n\r\nconst isBelowViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window\r\n\t\t\t? window.innerHeight + window.pageYOffset\r\n\t\t\t: getTopOffset(container) + container.offsetHeight;\r\n\treturn fold <= getTopOffset(element) - threshold;\r\n};\r\n\r\nconst getLeftOffset = function(element) {\r\n\treturn (\r\n\t\telement.getBoundingClientRect().left +\r\n\t\twindow.pageXOffset -\r\n\t\telement.ownerDocument.documentElement.clientLeft\r\n\t);\r\n};\r\n\r\nconst isAtRightOfViewport = function(element, container, threshold) {\r\n\tconst documentWidth = window.innerWidth;\r\n\tconst fold =\r\n\t\tcontainer === window\r\n\t\t\t? documentWidth + window.pageXOffset\r\n\t\t\t: getLeftOffset(container) + documentWidth;\r\n\treturn fold <= getLeftOffset(element) - threshold;\r\n};\r\n\r\nconst isAboveViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window ? window.pageYOffset : getTopOffset(container);\r\n\treturn fold >= getTopOffset(element) + threshold + element.offsetHeight;\r\n};\r\n\r\nconst isAtLeftOfViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window ? window.pageXOffset : getLeftOffset(container);\r\n\treturn fold >= getLeftOffset(element) + threshold + element.offsetWidth;\r\n};\r\n\r\nfunction isInsideViewport(element, container, threshold) {\r\n\treturn (\r\n\t\t!isBelowViewport(element, container, threshold) &&\r\n\t\t!isAboveViewport(element, container, threshold) &&\r\n\t\t!isAtRightOfViewport(element, container, threshold) &&\r\n\t\t!isAtLeftOfViewport(element, container, threshold)\r\n\t);\r\n}\n\n/* Creates instance and notifies it through the window element */\r\nconst createInstance = function (classObj, options) { \r\n    var event;\r\n    let eventString = \"LazyLoad::Initialized\";\r\n    let instance = new classObj(options);\r\n    try {\r\n        // Works in modern browsers\r\n        event = new CustomEvent(eventString, { detail: { instance } });\r\n    } \r\n    catch(err) {\r\n        // Works in Internet Explorer (all versions)\r\n        event = document.createEvent(\"CustomEvent\");\r\n        event.initCustomEvent(eventString, false, false, { instance });\r\n    }\r\n    window.dispatchEvent(event);\r\n};\r\n\r\n/* Auto initialization of one or more instances of lazyload, depending on the \r\n    options passed in (plain object or an array) */\r\nfunction autoInitialize (classObj, options) { \r\n    let optsLength = options.length;\r\n    if (!optsLength) {\r\n        // Plain object\r\n        createInstance(classObj, options);\r\n    }\r\n    else {\r\n        // Array of objects\r\n        for (let i = 0; i < optsLength; i++) {\r\n            createInstance(classObj, options[i]);\r\n        }\r\n    }\r\n}\n\nconst dataPrefix = \"data-\";\r\nconst processedDataName = \"was-processed\";\r\nconst processedDataValue = \"true\";\r\n\r\nconst getData = (element, attribute) => {\r\n\treturn element.getAttribute(dataPrefix + attribute);\r\n};\r\n\r\nconst setData = (element, attribute, value) => {\r\n\treturn element.setAttribute(dataPrefix + attribute, value);\r\n};\r\n\r\nconst setWasProcessed = element =>\r\n\tsetData(element, processedDataName, processedDataValue);\r\n\r\nconst getWasProcessed = element =>\r\n\tgetData(element, processedDataName) === processedDataValue;\n\nconst setSourcesInChildren = function(parentTag, attrName, dataAttrName) {\r\n\tfor (let i = 0, childTag; (childTag = parentTag.children[i]); i += 1) {\r\n\t\tif (childTag.tagName === \"SOURCE\") {\r\n\t\t\tlet attributeValue = getData(childTag, dataAttrName);\r\n\t\t\tif (attributeValue) {\r\n\t\t\t\tchildTag.setAttribute(attrName, attributeValue);\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n};\r\n\r\nconst setAttributeIfNotNullOrEmpty = function(element, attrName, value) {\r\n\tif (!value) {\r\n\t\treturn;\r\n\t}\r\n\telement.setAttribute(attrName, value);\r\n};\r\n\r\nfunction setSources(element, settings) {\r\n\tconst {\r\n\t\tdata_sizes: sizesDataName,\r\n\t\tdata_srcset: srcsetDataName,\r\n\t\tdata_src: srcDataName\r\n\t} = settings;\r\n\tconst srcDataValue = getData(element, srcDataName);\r\n\tconst tagName = element.tagName;\r\n\tif (tagName === \"IMG\") {\r\n\t\tconst parent = element.parentNode;\r\n\t\tif (parent && parent.tagName === \"PICTURE\") {\r\n\t\t\tsetSourcesInChildren(parent, \"srcset\", srcsetDataName);\r\n\t\t}\r\n\t\tconst sizesDataValue = getData(element, sizesDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"sizes\", sizesDataValue);\r\n\t\tconst srcsetDataValue = getData(element, srcsetDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"srcset\", srcsetDataValue);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (tagName === \"IFRAME\") {\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (tagName === \"VIDEO\") {\r\n\t\tsetSourcesInChildren(element, \"src\", srcDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (srcDataValue) {\r\n\t\telement.style.backgroundImage = `url(\"${srcDataValue}\")`;\r\n\t}\r\n}\n\nconst runningOnBrowser = typeof window !== \"undefined\";\r\n\r\nconst isBot =\r\n\t(runningOnBrowser && !(\"onscroll\" in window)) ||\r\n\t/(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent);\r\nconst supportsClassList =\r\n\trunningOnBrowser && \"classList\" in document.createElement(\"p\");\n\nconst addClass = (element, className) => {\r\n    if (supportsClassList) {\r\n        element.classList.add(className);\r\n        return;\r\n    }\r\n    element.className += (element.className ? \" \" : \"\") + className;\r\n};\r\n\r\nconst removeClass = (element, className) => {\r\n    if (supportsClassList) {\r\n        element.classList.remove(className);\r\n        return;\r\n    }\r\n    element.className = element.className.replace(new RegExp(\"(^|\\\\s+)\" + className + \"(\\\\s+|$)\"), \" \").replace(/^\\s+/, \"\").replace(/\\s+$/, \"\");\r\n};\n\n/*\r\n * Constructor\r\n */\r\n\r\nconst LazyLoad = function(instanceSettings) {\r\n\tthis._settings = Object.assign({}, getDefaultSettings(), instanceSettings);\r\n\tthis._queryOriginNode =\r\n\t\tthis._settings.container === window\r\n\t\t\t? document\r\n\t\t\t: this._settings.container;\r\n\r\n\tthis._previousLoopTime = 0;\r\n\tthis._loopTimeout = null;\r\n\tthis._boundHandleScroll = this.handleScroll.bind(this);\r\n\r\n\tthis._isFirstLoop = true;\r\n\twindow.addEventListener(\"resize\", this._boundHandleScroll);\r\n\tthis.update();\r\n};\r\n\r\nLazyLoad.prototype = {\r\n\t_reveal: function(element, force) {\r\n\t\tif (!force && getWasProcessed(element)) {\r\n\t\t\treturn; // element has already been processed and force wasn't true\r\n\t\t}\r\n\r\n\t\tconst settings = this._settings;\r\n\r\n\t\tconst errorCallback = function() {\r\n\t\t\t/* As this method is asynchronous, it must be protected against external destroy() calls */\r\n\t\t\tif (!settings) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t\telement.removeEventListener(\"load\", loadCallback);\r\n\t\t\telement.removeEventListener(\"error\", errorCallback);\r\n\t\t\tremoveClass(element, settings.class_loading);\r\n\t\t\taddClass(element, settings.class_error);\r\n\t\t\tcallCallback(settings.callback_error, element);\r\n\t\t};\r\n\r\n\t\tconst loadCallback = function() {\r\n\t\t\t/* As this method is asynchronous, it must be protected against external destroy() calls */\r\n\t\t\tif (!settings) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t\tremoveClass(element, settings.class_loading);\r\n\t\t\taddClass(element, settings.class_loaded);\r\n\t\t\telement.removeEventListener(\"load\", loadCallback);\r\n\t\t\telement.removeEventListener(\"error\", errorCallback);\r\n\t\t\tcallCallback(settings.callback_load, element);\r\n\t\t};\r\n\r\n\t\tcallCallback(settings.callback_enter, element);\r\n\t\tif ([\"IMG\", \"IFRAME\", \"VIDEO\"].indexOf(element.tagName) > -1) {\r\n\t\t\telement.addEventListener(\"load\", loadCallback);\r\n\t\t\telement.addEventListener(\"error\", errorCallback);\r\n\t\t\taddClass(element, settings.class_loading);\r\n\t\t}\r\n\t\tsetSources(element, settings);\r\n\t\tcallCallback(settings.callback_set, element);\r\n\t},\r\n\r\n\t_loopThroughElements: function(forceDownload) {\r\n\t\tconst settings = this._settings,\r\n\t\t\telements = this._elements,\r\n\t\t\telementsLength = !elements ? 0 : elements.length;\r\n\t\tlet i,\r\n\t\t\tprocessedIndexes = [],\r\n\t\t\tfirstLoop = this._isFirstLoop;\r\n\r\n\t\tfor (i = 0; i < elementsLength; i++) {\r\n\t\t\tlet element = elements[i];\r\n\t\t\t/* If must skip_invisible and element is invisible, skip it */\r\n\t\t\tif (settings.skip_invisible && element.offsetParent === null) {\r\n\t\t\t\tcontinue;\r\n\t\t\t}\r\n\r\n\t\t\tif (\r\n\t\t\t\tisBot ||\r\n\t\t\t\tforceDownload ||\r\n\t\t\t\tisInsideViewport(\r\n\t\t\t\t\telement,\r\n\t\t\t\t\tsettings.container,\r\n\t\t\t\t\tsettings.threshold\r\n\t\t\t\t)\r\n\t\t\t) {\r\n\t\t\t\tif (firstLoop) {\r\n\t\t\t\t\taddClass(element, settings.class_initial);\r\n\t\t\t\t}\r\n\t\t\t\t/* Start loading the image */\r\n\t\t\t\tthis.load(element);\r\n\t\t\t\t/* Marking the element as processed. */\r\n\t\t\t\tprocessedIndexes.push(i);\r\n\t\t\t\tsetWasProcessed(element);\r\n\t\t\t}\r\n\t\t}\r\n\t\t/* Removing processed elements from this._elements. */\r\n\t\twhile (processedIndexes.length) {\r\n\t\t\telements.splice(processedIndexes.pop(), 1);\r\n\t\t\tcallCallback(settings.callback_processed, elements.length);\r\n\t\t}\r\n\t\t/* Stop listening to scroll event when 0 elements remains */\r\n\t\tif (elementsLength === 0) {\r\n\t\t\tthis._stopScrollHandler();\r\n\t\t}\r\n\t\t/* Sets isFirstLoop to false */\r\n\t\tif (firstLoop) {\r\n\t\t\tthis._isFirstLoop = false;\r\n\t\t}\r\n\t},\r\n\r\n\t_purgeElements: function() {\r\n\t\tconst elements = this._elements,\r\n\t\t\telementsLength = elements.length;\r\n\t\tlet i,\r\n\t\t\telementsToPurge = [];\r\n\r\n\t\tfor (i = 0; i < elementsLength; i++) {\r\n\t\t\tlet element = elements[i];\r\n\t\t\t/* If the element has already been processed, skip it */\r\n\t\t\tif (getWasProcessed(element)) {\r\n\t\t\t\telementsToPurge.push(i);\r\n\t\t\t}\r\n\t\t}\r\n\t\t/* Removing elements to purge from this._elements. */\r\n\t\twhile (elementsToPurge.length > 0) {\r\n\t\t\telements.splice(elementsToPurge.pop(), 1);\r\n\t\t}\r\n\t},\r\n\r\n\t_startScrollHandler: function() {\r\n\t\tif (!this._isHandlingScroll) {\r\n\t\t\tthis._isHandlingScroll = true;\r\n\t\t\tthis._settings.container.addEventListener(\r\n\t\t\t\t\"scroll\",\r\n\t\t\t\tthis._boundHandleScroll\r\n\t\t\t);\r\n\t\t}\r\n\t},\r\n\r\n\t_stopScrollHandler: function() {\r\n\t\tif (this._isHandlingScroll) {\r\n\t\t\tthis._isHandlingScroll = false;\r\n\t\t\tthis._settings.container.removeEventListener(\r\n\t\t\t\t\"scroll\",\r\n\t\t\t\tthis._boundHandleScroll\r\n\t\t\t);\r\n\t\t}\r\n\t},\r\n\r\n\thandleScroll: function() {\r\n\t\tconst throttle = this._settings.throttle;\r\n\r\n\t\tif (throttle !== 0) {\r\n\t\t\tlet now = Date.now();\r\n\t\t\tlet remainingTime = throttle - (now - this._previousLoopTime);\r\n\t\t\tif (remainingTime <= 0 || remainingTime > throttle) {\r\n\t\t\t\tif (this._loopTimeout) {\r\n\t\t\t\t\tclearTimeout(this._loopTimeout);\r\n\t\t\t\t\tthis._loopTimeout = null;\r\n\t\t\t\t}\r\n\t\t\t\tthis._previousLoopTime = now;\r\n\t\t\t\tthis._loopThroughElements();\r\n\t\t\t} else if (!this._loopTimeout) {\r\n\t\t\t\tthis._loopTimeout = setTimeout(\r\n\t\t\t\t\tfunction() {\r\n\t\t\t\t\t\tthis._previousLoopTime = Date.now();\r\n\t\t\t\t\t\tthis._loopTimeout = null;\r\n\t\t\t\t\t\tthis._loopThroughElements();\r\n\t\t\t\t\t}.bind(this),\r\n\t\t\t\t\tremainingTime\r\n\t\t\t\t);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tthis._loopThroughElements();\r\n\t\t}\r\n\t},\r\n\r\n\tloadAll: function() {\r\n\t\tthis._loopThroughElements(true);\r\n\t},\r\n\r\n\tupdate: function() {\r\n\t\t// Converts to array the nodeset obtained querying the DOM from _queryOriginNode with elements_selector\r\n\t\tthis._elements = Array.prototype.slice.call(\r\n\t\t\tthis._queryOriginNode.querySelectorAll(\r\n\t\t\t\tthis._settings.elements_selector\r\n\t\t\t)\r\n\t\t);\r\n\t\tthis._purgeElements();\r\n\t\tthis._loopThroughElements();\r\n\t\tthis._startScrollHandler();\r\n\t},\r\n\r\n\tdestroy: function() {\r\n\t\twindow.removeEventListener(\"resize\", this._boundHandleScroll);\r\n\t\tif (this._loopTimeout) {\r\n\t\t\tclearTimeout(this._loopTimeout);\r\n\t\t\tthis._loopTimeout = null;\r\n\t\t}\r\n\t\tthis._stopScrollHandler();\r\n\t\tthis._elements = null;\r\n\t\tthis._queryOriginNode = null;\r\n\t\tthis._settings = null;\r\n\t},\r\n\r\n\tload: function(element, force) {\r\n\t\tthis._reveal(element, force);\r\n\t}\r\n};\r\n\r\n/* Automatic instances creation if required (useful for async script loading!) */\r\nlet autoInitOptions = window.lazyLoadOptions;\r\nif (runningOnBrowser && autoInitOptions) {\r\n\tautoInitialize(LazyLoad, autoInitOptions);\r\n}\n\nreturn LazyLoad;\n\n}());\n"]}
\ No newline at end of file
diff --git a/dist/lazyload.js b/dist/lazyload.js
index e49fc428..9069ea48 100644
--- a/dist/lazyload.js
+++ b/dist/lazyload.js
@@ -172,10 +172,9 @@ var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol
 
 	var runningOnBrowser = typeof window !== "undefined";
 
+	var isBot = runningOnBrowser && !("onscroll" in window) || /(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent);
 	var supportsClassList = runningOnBrowser && "classList" in document.createElement("p");
 
-	var isBot = runningOnBrowser && !("onscroll" in window) || /glebot|bingbot|crawler|spider|robot|crawling/i.test(navigator.userAgent);
-
 	var addClass = function addClass(element, className) {
 		if (supportsClassList) {
 			element.classList.add(className);
diff --git a/dist/lazyload.min.js b/dist/lazyload.min.js
index 576fa71a..4029f1b3 100644
--- a/dist/lazyload.min.js
+++ b/dist/lazyload.min.js
@@ -1 +1,2 @@
-var _extends=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var o in n)Object.prototype.hasOwnProperty.call(n,o)&&(e[o]=n[o])}return e},_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e};!function(e,t){"object"===("undefined"==typeof exports?"undefined":_typeof(exports))&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.LazyLoad=t()}(this,function(){"use strict";var d=function(e,t){e&&e(t)},o=function(e){return e.getBoundingClientRect().top+window.pageYOffset-e.ownerDocument.documentElement.clientTop},h=function(e,t,n){return(t===window?window.innerHeight+window.pageYOffset:o(t)+t.offsetHeight)<=o(e)-n},i=function(e){return e.getBoundingClientRect().left+window.pageXOffset-e.ownerDocument.documentElement.clientLeft},f=function(e,t,n){var o=window.innerWidth;return(t===window?o+window.pageXOffset:i(t)+o)<=i(e)-n},_=function(e,t,n){return(t===window?window.pageYOffset:o(t))>=o(e)+n+e.offsetHeight},p=function(e,t,n){return(t===window?window.pageXOffset:i(t))>=i(e)+n+e.offsetWidth};var s=function(e,t){var n,o="LazyLoad::Initialized",i=new e(t);try{n=new CustomEvent(o,{detail:{instance:i}})}catch(e){(n=document.createEvent("CustomEvent")).initCustomEvent(o,!1,!1,{instance:i})}window.dispatchEvent(n)};var r="data-",l="was-processed",a="true",u=function(e,t){return e.getAttribute(r+t)},m=function(e){return t=l,n=a,e.setAttribute(r+t,n);var t,n},c=function(e){return u(e,l)===a},g=function(e,t,n){for(var o,i=0;o=e.children[i];i+=1)if("SOURCE"===o.tagName){var s=u(o,n);s&&o.setAttribute(t,s)}},v=function(e,t,n){n&&e.setAttribute(t,n)};var e="undefined"!=typeof window,n=e&&"classList"in document.createElement("p"),w=e&&!("onscroll"in window)||/glebot|bingbot|crawler|spider|robot|crawling/i.test(navigator.userAgent),b=function(e,t){n?e.classList.add(t):e.className+=(e.className?" ":"")+t},y=function(e,t){n?e.classList.remove(t):e.className=e.className.replace(new RegExp("(^|\\s+)"+t+"(\\s+|$)")," ").replace(/^\s+/,"").replace(/\s+$/,"")},t=function(e){this._settings=_extends({},{elements_selector:"img",container:window,threshold:300,throttle:150,data_src:"src",data_srcset:"srcset",data_sizes:"sizes",class_loading:"loading",class_loaded:"loaded",class_error:"error",class_initial:"initial",skip_invisible:!0,callback_load:null,callback_error:null,callback_set:null,callback_processed:null,callback_enter:null},e),this._queryOriginNode=this._settings.container===window?document:this._settings.container,this._previousLoopTime=0,this._loopTimeout=null,this._boundHandleScroll=this.handleScroll.bind(this),this._isFirstLoop=!0,window.addEventListener("resize",this._boundHandleScroll),this.update()};t.prototype={_reveal:function(t,e){if(e||!c(t)){var n=this._settings,o=function e(){n&&(t.removeEventListener("load",i),t.removeEventListener("error",e),y(t,n.class_loading),b(t,n.class_error),d(n.callback_error,t))},i=function e(){n&&(y(t,n.class_loading),b(t,n.class_loaded),t.removeEventListener("load",e),t.removeEventListener("error",o),d(n.callback_load,t))};d(n.callback_enter,t),-1<["IMG","IFRAME","VIDEO"].indexOf(t.tagName)&&(t.addEventListener("load",i),t.addEventListener("error",o),b(t,n.class_loading)),function(e,t){var n=t.data_sizes,o=t.data_srcset,i=t.data_src,s=u(e,i),r=e.tagName;if("IMG"===r){var l=e.parentNode;l&&"PICTURE"===l.tagName&&g(l,"srcset",o);var a=u(e,n);v(e,"sizes",a);var c=u(e,o);return v(e,"srcset",c),v(e,"src",s)}if("IFRAME"!==r)return"VIDEO"===r?(g(e,"src",i),v(e,"src",s)):s&&(e.style.backgroundImage='url("'+s+'")');v(e,"src",s)}(t,n),d(n.callback_set,t)}},_loopThroughElements:function(e){var t,n,o,i=this._settings,s=this._elements,r=s?s.length:0,l=void 0,a=[],c=this._isFirstLoop;for(l=0;l<r;l++){var u=s[l];i.skip_invisible&&null===u.offsetParent||(!w&&!e&&(t=u,n=i.container,o=i.threshold,h(t,n,o)||_(t,n,o)||f(t,n,o)||p(t,n,o))||(c&&b(u,i.class_initial),this.load(u),a.push(l),m(u)))}for(;a.length;)s.splice(a.pop(),1),d(i.callback_processed,s.length);0===r&&this._stopScrollHandler(),c&&(this._isFirstLoop=!1)},_purgeElements:function(){var e=this._elements,t=e.length,n=void 0,o=[];for(n=0;n<t;n++){var i=e[n];c(i)&&o.push(n)}for(;0<o.length;)e.splice(o.pop(),1)},_startScrollHandler:function(){this._isHandlingScroll||(this._isHandlingScroll=!0,this._settings.container.addEventListener("scroll",this._boundHandleScroll))},_stopScrollHandler:function(){this._isHandlingScroll&&(this._isHandlingScroll=!1,this._settings.container.removeEventListener("scroll",this._boundHandleScroll))},handleScroll:function(){var e=this._settings.throttle;if(0!==e){var t=Date.now(),n=e-(t-this._previousLoopTime);n<=0||e<n?(this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._previousLoopTime=t,this._loopThroughElements()):this._loopTimeout||(this._loopTimeout=setTimeout(function(){this._previousLoopTime=Date.now(),this._loopTimeout=null,this._loopThroughElements()}.bind(this),n))}else this._loopThroughElements()},loadAll:function(){this._loopThroughElements(!0)},update:function(){this._elements=Array.prototype.slice.call(this._queryOriginNode.querySelectorAll(this._settings.elements_selector)),this._purgeElements(),this._loopThroughElements(),this._startScrollHandler()},destroy:function(){window.removeEventListener("resize",this._boundHandleScroll),this._loopTimeout&&(clearTimeout(this._loopTimeout),this._loopTimeout=null),this._stopScrollHandler(),this._elements=null,this._queryOriginNode=null,this._settings=null},load:function(e,t){this._reveal(e,t)}};var E=window.lazyLoadOptions;return e&&E&&function(e,t){var n=t.length;if(n)for(var o=0;o<n;o++)s(e,t[o]);else s(e,t)}(t,E),t});
\ No newline at end of file
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(global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(global.LazyLoad = factory());\n}(this, (function () { 'use strict';\n\nvar getDefaultSettings = () => ({\r\n\telements_selector: \"img\",\r\n\tcontainer: window,\r\n\tthreshold: 300,\r\n\tthrottle: 150,\r\n\tdata_src: \"src\",\r\n\tdata_srcset: \"srcset\",\r\n\tdata_sizes: \"sizes\",\r\n\tclass_loading: \"loading\",\r\n\tclass_loaded: \"loaded\",\r\n\tclass_error: \"error\",\r\n\tclass_initial: \"initial\",\r\n\tskip_invisible: true,\r\n\tcallback_load: null,\r\n\tcallback_error: null,\r\n\tcallback_set: null,\r\n\tcallback_processed: null,\r\n\tcallback_enter: null\r\n});\n\nconst callCallback = function(callback, argument) {\r\n\tif (callback) {\r\n\t\tcallback(argument);\r\n\t}\r\n};\n\nconst getTopOffset = function(element) {\r\n\treturn (\r\n\t\telement.getBoundingClientRect().top +\r\n\t\twindow.pageYOffset -\r\n\t\telement.ownerDocument.documentElement.clientTop\r\n\t);\r\n};\r\n\r\nconst isBelowViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window\r\n\t\t\t? window.innerHeight + window.pageYOffset\r\n\t\t\t: getTopOffset(container) + container.offsetHeight;\r\n\treturn fold <= getTopOffset(element) - threshold;\r\n};\r\n\r\nconst getLeftOffset = function(element) {\r\n\treturn (\r\n\t\telement.getBoundingClientRect().left +\r\n\t\twindow.pageXOffset -\r\n\t\telement.ownerDocument.documentElement.clientLeft\r\n\t);\r\n};\r\n\r\nconst isAtRightOfViewport = function(element, container, threshold) {\r\n\tconst documentWidth = window.innerWidth;\r\n\tconst fold =\r\n\t\tcontainer === window\r\n\t\t\t? documentWidth + window.pageXOffset\r\n\t\t\t: getLeftOffset(container) + documentWidth;\r\n\treturn fold <= getLeftOffset(element) - threshold;\r\n};\r\n\r\nconst isAboveViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window ? window.pageYOffset : getTopOffset(container);\r\n\treturn fold >= getTopOffset(element) + threshold + element.offsetHeight;\r\n};\r\n\r\nconst isAtLeftOfViewport = function(element, container, threshold) {\r\n\tconst fold =\r\n\t\tcontainer === window ? window.pageXOffset : getLeftOffset(container);\r\n\treturn fold >= getLeftOffset(element) + threshold + element.offsetWidth;\r\n};\r\n\r\nfunction isInsideViewport(element, container, threshold) {\r\n\treturn (\r\n\t\t!isBelowViewport(element, container, threshold) &&\r\n\t\t!isAboveViewport(element, container, threshold) &&\r\n\t\t!isAtRightOfViewport(element, container, threshold) &&\r\n\t\t!isAtLeftOfViewport(element, container, threshold)\r\n\t);\r\n}\n\n/* Creates instance and notifies it through the window element */\r\nconst createInstance = function (classObj, options) { \r\n    var event;\r\n    let eventString = \"LazyLoad::Initialized\";\r\n    let instance = new classObj(options);\r\n    try {\r\n        // Works in modern browsers\r\n        event = new CustomEvent(eventString, { detail: { instance } });\r\n    } \r\n    catch(err) {\r\n        // Works in Internet Explorer (all versions)\r\n        event = document.createEvent(\"CustomEvent\");\r\n        event.initCustomEvent(eventString, false, false, { instance });\r\n    }\r\n    window.dispatchEvent(event);\r\n};\r\n\r\n/* Auto initialization of one or more instances of lazyload, depending on the \r\n    options passed in (plain object or an array) */\r\nfunction autoInitialize (classObj, options) { \r\n    let optsLength = options.length;\r\n    if (!optsLength) {\r\n        // Plain object\r\n        createInstance(classObj, options);\r\n    }\r\n    else {\r\n        // Array of objects\r\n        for (let i = 0; i < optsLength; i++) {\r\n            createInstance(classObj, options[i]);\r\n        }\r\n    }\r\n}\n\nconst dataPrefix = \"data-\";\r\nconst processedDataName = \"was-processed\";\r\nconst processedDataValue = \"true\";\r\n\r\nconst getData = (element, attribute) => {\r\n\treturn element.getAttribute(dataPrefix + attribute);\r\n};\r\n\r\nconst setData = (element, attribute, value) => {\r\n\treturn element.setAttribute(dataPrefix + attribute, value);\r\n};\r\n\r\nconst setWasProcessed = element =>\r\n\tsetData(element, processedDataName, processedDataValue);\r\n\r\nconst getWasProcessed = element =>\r\n\tgetData(element, processedDataName) === processedDataValue;\n\nconst setSourcesInChildren = function(parentTag, attrName, dataAttrName) {\r\n\tfor (let i = 0, childTag; (childTag = parentTag.children[i]); i += 1) {\r\n\t\tif (childTag.tagName === \"SOURCE\") {\r\n\t\t\tlet attributeValue = getData(childTag, dataAttrName);\r\n\t\t\tif (attributeValue) {\r\n\t\t\t\tchildTag.setAttribute(attrName, attributeValue);\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n};\r\n\r\nconst setAttributeIfNotNullOrEmpty = function(element, attrName, value) {\r\n\tif (!value) {\r\n\t\treturn;\r\n\t}\r\n\telement.setAttribute(attrName, value);\r\n};\r\n\r\nfunction setSources(element, settings) {\r\n\tconst {\r\n\t\tdata_sizes: sizesDataName,\r\n\t\tdata_srcset: srcsetDataName,\r\n\t\tdata_src: srcDataName\r\n\t} = settings;\r\n\tconst srcDataValue = getData(element, srcDataName);\r\n\tconst tagName = element.tagName;\r\n\tif (tagName === \"IMG\") {\r\n\t\tconst parent = element.parentNode;\r\n\t\tif (parent && parent.tagName === \"PICTURE\") {\r\n\t\t\tsetSourcesInChildren(parent, \"srcset\", srcsetDataName);\r\n\t\t}\r\n\t\tconst sizesDataValue = getData(element, sizesDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"sizes\", sizesDataValue);\r\n\t\tconst srcsetDataValue = getData(element, srcsetDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"srcset\", srcsetDataValue);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (tagName === \"IFRAME\") {\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (tagName === \"VIDEO\") {\r\n\t\tsetSourcesInChildren(element, \"src\", srcDataName);\r\n\t\tsetAttributeIfNotNullOrEmpty(element, \"src\", srcDataValue);\r\n\t\treturn;\r\n\t}\r\n\tif (srcDataValue) {\r\n\t\telement.style.backgroundImage = `url(\"${srcDataValue}\")`;\r\n\t}\r\n}\n\nconst runningOnBrowser = typeof window !== \"undefined\";\r\n\r\nconst isBot =\r\n\t(runningOnBrowser && !(\"onscroll\" in window)) ||\r\n\t/(gle|ing|ro)bot|crawl|spider/i.test(navigator.userAgent);\r\nconst supportsClassList =\r\n\trunningOnBrowser && \"classList\" in document.createElement(\"p\");\n\nconst addClass = (element, className) => {\r\n    if (supportsClassList) {\r\n        element.classList.add(className);\r\n        return;\r\n    }\r\n    element.className += (element.className ? \" \" : \"\") + className;\r\n};\r\n\r\nconst removeClass = (element, className) => {\r\n    if (supportsClassList) {\r\n        element.classList.remove(className);\r\n        return;\r\n    }\r\n    element.className = element.className.replace(new RegExp(\"(^|\\\\s+)\" + className + \"(\\\\s+|$)\"), \" \").replace(/^\\s+/, \"\").replace(/\\s+$/, \"\");\r\n};\n\n/*\r\n * Constructor\r\n */\r\n\r\nconst LazyLoad = function(instanceSettings) {\r\n\tthis._settings = Object.assign({}, getDefaultSettings(), instanceSettings);\r\n\tthis._queryOriginNode =\r\n\t\tthis._settings.container === window\r\n\t\t\t? document\r\n\t\t\t: this._settings.container;\r\n\r\n\tthis._previousLoopTime = 0;\r\n\tthis._loopTimeout = null;\r\n\tthis._boundHandleScroll = this.handleScroll.bind(this);\r\n\r\n\tthis._isFirstLoop = true;\r\n\twindow.addEventListener(\"resize\", this._boundHandleScroll);\r\n\tthis.update();\r\n};\r\n\r\nLazyLoad.prototype = {\r\n\t_reveal: function(element, force) {\r\n\t\tif (!force && getWasProcessed(element)) {\r\n\t\t\treturn; // element has already been processed and force wasn't true\r\n\t\t}\r\n\r\n\t\tconst settings = this._settings;\r\n\r\n\t\tconst errorCallback = function() {\r\n\t\t\t/* As this method is asynchronous, it must be protected against external destroy() calls */\r\n\t\t\tif (!settings) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t\telement.removeEventListener(\"load\", loadCallback);\r\n\t\t\telement.removeEventListener(\"error\", errorCallback);\r\n\t\t\tremoveClass(element, settings.class_loading);\r\n\t\t\taddClass(element, settings.class_error);\r\n\t\t\tcallCallback(settings.callback_error, element);\r\n\t\t};\r\n\r\n\t\tconst loadCallback = function() {\r\n\t\t\t/* As this method is asynchronous, it must be protected against external destroy() calls */\r\n\t\t\tif (!settings) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t\tremoveClass(element, settings.class_loading);\r\n\t\t\taddClass(element, settings.class_loaded);\r\n\t\t\telement.removeEventListener(\"load\", loadCallback);\r\n\t\t\telement.removeEventListener(\"error\", errorCallback);\r\n\t\t\tcallCallback(settings.callback_load, element);\r\n\t\t};\r\n\r\n\t\tcallCallback(settings.callback_enter, element);\r\n\t\tif ([\"IMG\", \"IFRAME\", \"VIDEO\"].indexOf(element.tagName) > -1) {\r\n\t\t\telement.addEventListener(\"load\", loadCallback);\r\n\t\t\telement.addEventListener(\"error\", errorCallback);\r\n\t\t\taddClass(element, settings.class_loading);\r\n\t\t}\r\n\t\tsetSources(element, settings);\r\n\t\tcallCallback(settings.callback_set, element);\r\n\t},\r\n\r\n\t_loopThroughElements: function(forceDownload) {\r\n\t\tconst settings = this._settings,\r\n\t\t\telements = this._elements,\r\n\t\t\telementsLength = !elements ? 0 : elements.length;\r\n\t\tlet i,\r\n\t\t\tprocessedIndexes = [],\r\n\t\t\tfirstLoop = this._isFirstLoop;\r\n\r\n\t\tfor (i = 0; i < elementsLength; i++) {\r\n\t\t\tlet element = elements[i];\r\n\t\t\t/* If must skip_invisible and element is invisible, skip it */\r\n\t\t\tif (settings.skip_invisible && element.offsetParent === null) {\r\n\t\t\t\tcontinue;\r\n\t\t\t}\r\n\r\n\t\t\tif (\r\n\t\t\t\tisBot ||\r\n\t\t\t\tforceDownload ||\r\n\t\t\t\tisInsideViewport(\r\n\t\t\t\t\telement,\r\n\t\t\t\t\tsettings.container,\r\n\t\t\t\t\tsettings.threshold\r\n\t\t\t\t)\r\n\t\t\t) {\r\n\t\t\t\tif (firstLoop) {\r\n\t\t\t\t\taddClass(element, settings.class_initial);\r\n\t\t\t\t}\r\n\t\t\t\t/* Start loading the image */\r\n\t\t\t\tthis.load(element);\r\n\t\t\t\t/* Marking the element as processed. */\r\n\t\t\t\tprocessedIndexes.push(i);\r\n\t\t\t\tsetWasProcessed(element);\r\n\t\t\t}\r\n\t\t}\r\n\t\t/* Removing processed elements from this._elements. */\r\n\t\twhile (processedIndexes.length) {\r\n\t\t\telements.splice(processedIndexes.pop(), 1);\r\n\t\t\tcallCallback(settings.callback_processed, elements.length);\r\n\t\t}\r\n\t\t/* Stop listening to scroll event when 0 elements remains */\r\n\t\tif (elementsLength === 0) {\r\n\t\t\tthis._stopScrollHandler();\r\n\t\t}\r\n\t\t/* Sets isFirstLoop to false */\r\n\t\tif (firstLoop) {\r\n\t\t\tthis._isFirstLoop = false;\r\n\t\t}\r\n\t},\r\n\r\n\t_purgeElements: function() {\r\n\t\tconst elements = this._elements,\r\n\t\t\telementsLength = elements.length;\r\n\t\tlet i,\r\n\t\t\telementsToPurge = [];\r\n\r\n\t\tfor (i = 0; i < elementsLength; i++) {\r\n\t\t\tlet element = elements[i];\r\n\t\t\t/* If the element has already been processed, skip it */\r\n\t\t\tif (getWasProcessed(element)) {\r\n\t\t\t\telementsToPurge.push(i);\r\n\t\t\t}\r\n\t\t}\r\n\t\t/* Removing elements to purge from this._elements. */\r\n\t\twhile (elementsToPurge.length > 0) {\r\n\t\t\telements.splice(elementsToPurge.pop(), 1);\r\n\t\t}\r\n\t},\r\n\r\n\t_startScrollHandler: function() {\r\n\t\tif (!this._isHandlingScroll) {\r\n\t\t\tthis._isHandlingScroll = true;\r\n\t\t\tthis._settings.container.addEventListener(\r\n\t\t\t\t\"scroll\",\r\n\t\t\t\tthis._boundHandleScroll\r\n\t\t\t);\r\n\t\t}\r\n\t},\r\n\r\n\t_stopScrollHandler: function() {\r\n\t\tif (this._isHandlingScroll) {\r\n\t\t\tthis._isHandlingScroll = false;\r\n\t\t\tthis._settings.container.removeEventListener(\r\n\t\t\t\t\"scroll\",\r\n\t\t\t\tthis._boundHandleScroll\r\n\t\t\t);\r\n\t\t}\r\n\t},\r\n\r\n\thandleScroll: function() {\r\n\t\tconst throttle = this._settings.throttle;\r\n\r\n\t\tif (throttle !== 0) {\r\n\t\t\tlet now = Date.now();\r\n\t\t\tlet remainingTime = throttle - (now - this._previousLoopTime);\r\n\t\t\tif (remainingTime <= 0 || remainingTime > throttle) {\r\n\t\t\t\tif (this._loopTimeout) {\r\n\t\t\t\t\tclearTimeout(this._loopTimeout);\r\n\t\t\t\t\tthis._loopTimeout = null;\r\n\t\t\t\t}\r\n\t\t\t\tthis._previousLoopTime = now;\r\n\t\t\t\tthis._loopThroughElements();\r\n\t\t\t} else if (!this._loopTimeout) {\r\n\t\t\t\tthis._loopTimeout = setTimeout(\r\n\t\t\t\t\tfunction() {\r\n\t\t\t\t\t\tthis._previousLoopTime = Date.now();\r\n\t\t\t\t\t\tthis._loopTimeout = null;\r\n\t\t\t\t\t\tthis._loopThroughElements();\r\n\t\t\t\t\t}.bind(this),\r\n\t\t\t\t\tremainingTime\r\n\t\t\t\t);\r\n\t\t\t}\r\n\t\t} else {\r\n\t\t\tthis._loopThroughElements();\r\n\t\t}\r\n\t},\r\n\r\n\tloadAll: function() {\r\n\t\tthis._loopThroughElements(true);\r\n\t},\r\n\r\n\tupdate: function() {\r\n\t\t// Converts to array the nodeset obtained querying the DOM from _queryOriginNode with elements_selector\r\n\t\tthis._elements = Array.prototype.slice.call(\r\n\t\t\tthis._queryOriginNode.querySelectorAll(\r\n\t\t\t\tthis._settings.elements_selector\r\n\t\t\t)\r\n\t\t);\r\n\t\tthis._purgeElements();\r\n\t\tthis._loopThroughElements();\r\n\t\tthis._startScrollHandler();\r\n\t},\r\n\r\n\tdestroy: function() {\r\n\t\twindow.removeEventListener(\"resize\", this._boundHandleScroll);\r\n\t\tif (this._loopTimeout) {\r\n\t\t\tclearTimeout(this._loopTimeout);\r\n\t\t\tthis._loopTimeout = null;\r\n\t\t}\r\n\t\tthis._stopScrollHandler();\r\n\t\tthis._elements = null;\r\n\t\tthis._queryOriginNode = null;\r\n\t\tthis._settings = null;\r\n\t},\r\n\r\n\tload: function(element, force) {\r\n\t\tthis._reveal(element, force);\r\n\t}\r\n};\r\n\r\n/* Automatic instances creation if required (useful for async script loading!) */\r\nlet autoInitOptions = window.lazyLoadOptions;\r\nif (runningOnBrowser && autoInitOptions) {\r\n\tautoInitialize(LazyLoad, autoInitOptions);\r\n}\n\nreturn LazyLoad;\n\n})));\n"]}
\ No newline at end of file