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chromium / permission.site

A site to test the interaction of web APIs and browser permissions.
https://permission.site/
BSD 3-Clause "New" or "Revised" License
1.18k stars 116 forks source link

Add button for `beforeunload` handler #32

Open lgarron opened 7 years ago

RamGoel commented 2 years ago

Hi @lgarron can u provide some more info on this.

lgarron commented 2 years ago

https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event

This can trigger a user prompt when the page is about to be closed.