Beforeunload for PWA
ljharb at gmail.com
Tue Mar 30 16:27:44 UTC 2021
PWAs and events aren't part of the JS language; see
On Tue, Mar 30, 2021 at 5:39 AM Adam Eisenreich <akxe at seznam.cz> wrote:
> I think that PWA should have the ability to override the default
> beforeunloadEvent message.
> Since returning string is already deprecated and removed from all
> browsers, it would be safe to change how the returned value is handeled.
> *All proposed changes should only apply to installed PWAs!*
> If the return value is:
> 1. HTMLFormElement - display the element in front of everything with a
> backdrop disabling every other interaction.
> * CSS of the page should apply to this element.
> * Browser listens to the "submit" event of the form; based on the
> truthiness of the return value from the form submit event either close
> window or hide message while keeping window open
> * Closing the window via system buttons a second time (while dialog is
> open) will force the closing of the page.
> 2. String - Display the standard beforeunload dialog that used to have
> the custom message.
> What are your thoughts? Should PWA have the exception and have elevated
> es-discuss mailing list
> es-discuss at mozilla.org
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