From b5c48abfcec56748021265d61124f02c46e5f084 Mon Sep 17 00:00:00 2001
From: Jonathan Dawson <dawsonjed@gmail.com>
Date: Fri, 28 Feb 2020 12:37:35 -0600
Subject: [PATCH] check if aria-hidden exists before seeing if its value is
 false.

---
 inject.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/inject.js b/inject.js
index e95ff04..d059564 100644
--- a/inject.js
+++ b/inject.js
@@ -502,7 +502,8 @@ function initializeNow(document) {
               });
               break;
             case "attributes":
-              if (mutation.target.attributes["aria-hidden"].value == "false") {
+              if (mutation.target.attributes["aria-hidden"] &&
+                mutation.target.attributes["aria-hidden"].value == "false") {
                 var flattenedNodes = getShadow(document.body);
                 var node = flattenedNodes.filter(x => x.tagName == "VIDEO")[0];
                 if (node) {