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path: root/ext/bg/js/settings-popup-preview.js
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-rw-r--r--ext/bg/js/settings-popup-preview.js7
1 files changed, 6 insertions, 1 deletions
diff --git a/ext/bg/js/settings-popup-preview.js b/ext/bg/js/settings-popup-preview.js
index b12fb726..ce6da4c0 100644
--- a/ext/bg/js/settings-popup-preview.js
+++ b/ext/bg/js/settings-popup-preview.js
@@ -158,9 +158,14 @@ class SettingsPopupPreview {
const range = document.createRange();
range.selectNode(textNode);
const source = new TextSourceRange(range, range.toString(), null);
+ if (source === null) { return; }
this.frontend.textSourceLast = null;
- await this.frontend.searchSource(source, 'script');
+ try {
+ await this.frontend.searchSource(source, 'script');
+ } finally {
+ source.cleanup();
+ }
await this.frontend.lastShowPromise;
if (this.frontend.popup.isVisible()) {