I tried the code on Chrome, FireFox and Safari. Still the onbeforeunload does not fire. I also tried the onunload , but it did not work. ... <看更多>

Hi, I have the same problem on Windows 10 with v1.4.7, and I could reproduce it with the following code, appended in the default app:. ... <看更多>

JavaScript beforeunload Event. If this JavaScript tutorial saves you hours of work, please whitelist it in your ad blocker and. ... <看更多>

From what I can tell, you can't use the beforeunload event because the framework does whatever it does in a way that breaks this event. ... <看更多>

Learn what is beforeunload method in jQuery and how it can save you a bunch of visitors on your site! ... <看更多>

Platform: I reproed the problem on Chrome 89 and Firefox 86, with a MacOS device. I'm quite sure it does not really matter as long as preventing the page from ... ... <看更多>