From 149a64bca65085871a4b0faff72cab26f05b636e Mon Sep 17 00:00:00 2001
From: mrmr1993
Date: Tue, 14 Nov 2017 00:43:29 +0000
Subject: FF: Restore window expando on every event listener

This should fix *most* problems from Firefox issue 1408996[1].

The root cause of the bug is that document.domain is set, and Firefox
discards the 'expando' for the window that contains all properties we
set. Technically, this can happen at any time, and so some failures are
still possible. This fixes #2799.

[1]: https://bugzilla.mozilla.org/show_bug.cgi?id=1408996
---
 content_scripts/vimium_frontend.coffee | 1 +
 1 file changed, 1 insertion(+)

(limited to 'content_scripts/vimium_frontend.coffee')

diff --git a/content_scripts/vimium_frontend.coffee b/content_scripts/vimium_frontend.coffee
index 492a82e5..feed4ae5 100644
--- a/content_scripts/vimium_frontend.coffee
+++ b/content_scripts/vimium_frontend.coffee
@@ -157,6 +157,7 @@ initializePreDomReady = ->
 # Wrapper to install event listeners.  Syntactic sugar.
 installListener = (element, event, callback) ->
   element.addEventListener(event, forTrusted(->
+    root.extend window, root unless extend?
     if isEnabledForUrl then callback.apply(this, arguments) else true
   ), true)
 
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