From 964de775df5b573b8ae96e4096815e1649401eb9 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Sat, 14 Sep 2019 12:02:31 -0400
Subject: Validate contentWindow before focus
---
ext/fg/js/popup.js | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'ext/fg/js')
diff --git a/ext/fg/js/popup.js b/ext/fg/js/popup.js
index 1b15977b..08c4bfcb 100644
--- a/ext/fg/js/popup.js
+++ b/ext/fg/js/popup.js
@@ -239,9 +239,12 @@ class Popup {
}
focusParent() {
- if (this.parent && this.parent.container) {
+ if (this.parent !== null) {
// Chrome doesn't like focusing iframe without contentWindow.
- this.parent.container.contentWindow.focus();
+ const contentWindow = this.parent.container.contentWindow;
+ if (contentWindow !== null) {
+ contentWindow.focus();
+ }
} else {
// Firefox doesn't like focusing window without first blurring the iframe.
// this.container.contentWindow.blur() doesn't work on Firefox for some reason.
--
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