From 501e0b3db7e0a885e3b6bd164dae423d584e4bff Mon Sep 17 00:00:00 2001
From: Rob Wu <rob@robwu.nl>
Date: Wed, 11 Sep 2019 15:56:02 +0200
Subject: [PATCH] [CRX] Ignore auto-generated <embed> from Chrome

Fixes #11137
---
 extensions/chromium/contentscript.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/extensions/chromium/contentscript.js b/extensions/chromium/contentscript.js
index 8349a97439a39..3a7d86fde2aa4 100644
--- a/extensions/chromium/contentscript.js
+++ b/extensions/chromium/contentscript.js
@@ -62,6 +62,12 @@ function watchObjectOrEmbed(elem) {
     // Until #4483 is fixed, POST requests should be ignored.
     return;
   }
+  if (elem.tagName === 'EMBED' && elem.src === 'about:blank') {
+    // Starting from Chrome 76, internal embeds do not have the original URL,
+    // but "about:blank" instead.
+    // See https://github.com/mozilla/pdf.js/issues/11137
+    return;
+  }
 
   if (elem.__I_saw_this_element) {
     return;