@HolgerJeromin commented on this pull request.
> @@ -0,0 +1,48 @@
+(function () {
+ function beforeUnloadListener(event) {
+ event.preventDefault();
+ // Legacy support for older browsers.
+ event.returnValue = true;
+ };
+
+ // A function that adds a `beforeunload` listener if there are unsaved
changes.
This comment type is not used in tooltips in most/all browsers.
Jsdoc would be better
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