Killer Marmot: Web app

Marmots are the best.

This is a test for Progressive Web Apps. Site which is a valid web app.


Click this button to send a POST request to another origin, which will subsequently redirect back here:

Custom beforeinstallprompt behavior

Timer: seconds


Explanation of Badging

File Handling.

This provides a list of the contents of launched files.

Explanation of maskable icons

Test page with multiple service workers

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