Progressive web app not working on iPad

I’ve used a desktop shortcut to the real-time map for a long time on various devices (phones, ipad, laptops). From my ipad this invokes the progressive web app (PWA) that has worked under both safari and chrome. Several months ago this started failing with the message “Unsupported browser…” (see screenshot below). Clicking on either “legacy” or “modern” links works fine. No issues on any other device. I’ve tried recreating the shortcut from both safari and chrome w/o luck. Anyone recognize what’s wrong?

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Hi @Sam_Leffler

What browser is this happening on? You’re saying that you’re experiencing this on both Safari and Chrome?

Yes, both safari & chrome. Chrome version is 139.0.7258.76. iPadOS Version is 17.7.9. But I’m not clear whether chrome or safari are used by the PWA as I don’t see a way to inspect that through the purpleair ui.

iPadOS updated to 17.7.10 but still busted.

On a Chromebook I can inspect (through the debugger console) the initial exchange that results in the “modern version” of the app being run:

Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
pa.loader.3.1.6.legacy.js:2 browserType: modern browser (4)
pa.map.3.1.6.modern.js:2 Loading version 3.1.6

I don’t see how to get to any of that stuff from the iPadOS chrome app and not sure how to get the browser’s version string otherwise…