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-rw-r--r--ext/fg/js/popup.js7
1 files changed, 5 insertions, 2 deletions
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.