diff --git a/web/app.js b/web/app.js
index daaf0a54f28e8..8ef838a5c46cd 100644
--- a/web/app.js
+++ b/web/app.js
@@ -3153,19 +3153,21 @@ function webViewerPostMessage(evt) {
       } else {
         ({ action, data } = evt.data);
       }
+      const filename = data.name ? `${data.name}.pdf` : "liker-land_ebook.pdf";
+      const url = `https://liker.land/${filename}`;
       switch (action) {
         case "openBase64File":
           PDFViewerApplication.open({
             data: atob(data.data),
-            originalUrl: data.name,
-            filename: data.name ? `${data.name}.pdf` : "liker-land_ebook.pdf",
+            url,
+            filename,
           });
           break;
         case "openArrayBufferFile":
           PDFViewerApplication.open({
             data: new Uint8Array(data.data),
-            originalUrl: data.name,
-            filename: data.name ? `${data.name}.pdf` : "liker-land_ebook.pdf",
+            url,
+            filename,
           });
           break;
       }
diff --git a/web/viewer-snippet.html b/web/viewer-snippet.html
index 3baf94773bfd4..0491041485eed 100644
--- a/web/viewer-snippet.html
+++ b/web/viewer-snippet.html
@@ -1,3 +1,7 @@
 <!-- This snippet is used in production (included from viewer.html) -->
 <link rel="resource" type="application/l10n" href="locale/locale.json">
+<script
+  src="https://js.sentry-cdn.com/e214bf98fc5b536dea2fa999bcc2670e.min.js"
+  crossorigin="anonymous"
+></script>
 <script src="../build/pdf.mjs" type="module"></script>
diff --git a/web/viewer.js b/web/viewer.js
index 6f2b1aec31a77..c49368e13ec7d 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -263,6 +263,14 @@ function webViewerLoad() {
   PDFViewerApplication.run(config);
 }
 
+if (window.Sentry) {
+  window.Sentry.onLoad(function () {
+    window.Sentry.init({
+      tracesSampleRate: 0.1,
+    });
+  });
+}
+
 // Block the "load" event until all pages are loaded, to ensure that printing
 // works in Firefox; see https://bugzilla.mozilla.org/show_bug.cgi?id=1618553
 document.blockUnblockOnload?.(true);