diff --git a/htmljs/src/BPLLogViewer.tmpl.html b/htmljs/src/BPLLogViewer.tmpl.html
index f31d549a..e09b092d 100644
--- a/htmljs/src/BPLLogViewer.tmpl.html
+++ b/htmljs/src/BPLLogViewer.tmpl.html
@@ -16,7 +16,7 @@
     <script type="text/javascript" src="js/vendor/chart.js"></script>
     <script type="text/javascript" src="js/script-viewer.js"></script>
     <script type="text/javascript" src="js/chart-edit.js"></script>
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
     <style>
         * {
             -webkit-box-sizing: border-box;
diff --git a/htmljs/src/BPLog.tmpl.html b/htmljs/src/BPLog.tmpl.html
index 42e6b78c..a62b1712 100644
--- a/htmljs/src/BPLog.tmpl.html
+++ b/htmljs/src/BPLog.tmpl.html
@@ -15,7 +15,7 @@
     <script type="text/javascript" src="js/ical.js"></script>
     <script type="text/javascript" src="js/vendor/chart.js"></script>
     <script type="text/javascript" src="js/script-webviewer.js"></script>
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
     <style>
         * {
             -webkit-box-sizing: border-box;
diff --git a/htmljs/src/config.tmpl.html b/htmljs/src/config.tmpl.html
index f8927e88..d041a65d 100644
--- a/htmljs/src/config.tmpl.html
+++ b/htmljs/src/config.tmpl.html
@@ -14,7 +14,7 @@
     <script type="text/javascript" src="js/shared.js"></script>
     <script type="text/javascript" src="js/script-config.js"></script>
     <link rel="stylesheet" href="style-config.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 </head>
 
diff --git a/htmljs/src/control.tmpl.html b/htmljs/src/control.tmpl.html
index d78f65a8..39b581dc 100644
--- a/htmljs/src/control.tmpl.html
+++ b/htmljs/src/control.tmpl.html
@@ -17,7 +17,7 @@
     <script type="text/javascript" src="js/ptc.js"></script>
     <script type="text/javascript" src="js/script-control.js"></script>
     <link rel="stylesheet" href="style-control.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload="initctrl()">
diff --git a/htmljs/src/control_s.tmpl.html b/htmljs/src/control_s.tmpl.html
index c3474061..fda9e82d 100644
--- a/htmljs/src/control_s.tmpl.html
+++ b/htmljs/src/control_s.tmpl.html
@@ -17,7 +17,7 @@
     <script type="text/javascript" src="js/ptc.js"></script>
     <script type="text/javascript" src="js/script-control.js"></script>
     <link rel="stylesheet" href="style-control.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload="initctrl()">
diff --git a/htmljs/src/gravity.tmpl.html b/htmljs/src/gravity.tmpl.html
index aaef6559..696a7bbc 100644
--- a/htmljs/src/gravity.tmpl.html
+++ b/htmljs/src/gravity.tmpl.html
@@ -13,7 +13,7 @@
     <script type="text/javascript" src="js/shared.js"></script>
     <script type="text/javascript" src="js/script-gravity.js"></script>
     <link rel="stylesheet" href="style-gravity.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload=init()>
diff --git a/htmljs/src/index.tmpl.html b/htmljs/src/index.tmpl.html
index f73030ff..2068e5aa 100644
--- a/htmljs/src/index.tmpl.html
+++ b/htmljs/src/index.tmpl.html
@@ -19,7 +19,7 @@
     <script type="text/javascript" src="js/capper.js"></script>
     <script type="text/javascript" src="js/script.js"></script>
     <link rel="stylesheet" href="style.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload=init()>
diff --git a/htmljs/src/index_s.tmpl.html b/htmljs/src/index_s.tmpl.html
index 3e00359f..9fb096b8 100644
--- a/htmljs/src/index_s.tmpl.html
+++ b/htmljs/src/index_s.tmpl.html
@@ -19,7 +19,7 @@
     <script type="text/javascript" src="js/capper.js"></script>
     <script type="text/javascript" src="js/script.js"></script>
     <link rel="stylesheet" href="style.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload=init()>
diff --git a/htmljs/src/logging.tmpl.html b/htmljs/src/logging.tmpl.html
index e83ab0cb..293b5a1f 100644
--- a/htmljs/src/logging.tmpl.html
+++ b/htmljs/src/logging.tmpl.html
@@ -15,7 +15,7 @@
     <script type="text/javascript" src="js/script-logging.js"></script>
     <script type="text/javascript" src="js/mqtt.js"></script>
     <link rel="stylesheet" href="style-logging.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload="init();">
diff --git a/htmljs/src/pressure.tmpl.html b/htmljs/src/pressure.tmpl.html
index 49c76064..970d3ff7 100644
--- a/htmljs/src/pressure.tmpl.html
+++ b/htmljs/src/pressure.tmpl.html
@@ -13,7 +13,7 @@
     <script type="text/javascript" src="js/shared.js"></script>
     <script type="text/javascript" src="js/script-pressure.js"></script>
     <link rel="stylesheet" href="style-pressure.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload=loaded()>
diff --git a/htmljs/src/setup.tmpl.html b/htmljs/src/setup.tmpl.html
index 64102f07..3289673b 100644
--- a/htmljs/src/setup.tmpl.html
+++ b/htmljs/src/setup.tmpl.html
@@ -14,7 +14,7 @@
     <script type="text/javascript" src="js/shared.js"></script>
     <script type="text/javascript" src="js/script-setup.js"></script>
     <link rel="stylesheet" href="style-setup.css">
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 
 <body onload=init()>
diff --git a/htmljs/src/testcmd.html b/htmljs/src/testcmd.html
index 0e30e158..373ce05c 100644
--- a/htmljs/src/testcmd.html
+++ b/htmljs/src/testcmd.html
@@ -9,7 +9,7 @@
     <meta name="apple-mobile-web-app-title" content="BrewPiLite">
     <meta name="apple-mobile-web-app-capable" content="yes">
     <script type="text/javascript" src="bwf.js"></script>
-    <link rel="icon" href="data:;base64,iVBORw0KGgo=">
+    <link rel="icon" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
 </head>
 <style>
     #log {
