No ability to reset microphone/camera permissions in webapps

[snimshchikov]

Steps to reproduce

1. Open https://t.me/asmico_attach_bot?startapp=test
2. Click "Request audio" in "Test permissions" section
3. Deny audio access
4. Click request audio again and see nothing (because all requests after first will use the decision from the first answer, see https://learn.microsoft.com/en-us/dotnet/api/microsoft.web.webview2.core.corewebview2permissionrequestedeventargs.savesinprofile)

Expected behaviour

If user rejected the request, ask again. If user allowed, add button in the menu to revoke access

Actual behaviour

Website saves first decision and never asks again, which can block microphone access forever, making some webapps unusable

Operating system

Windows

Version of Telegram Desktop

6.8.2

Installation source

Static binary from official website

Crash ID

No response

Logs

[john-preston]

@snimshchikov how does it work in mobile apps?

[snimshchikov]

It telegram for android (v12.7.4) every getUserMedia request generates a microphone access prompt (result is not cached)
I will add ios version behaviour in a later comment

[snimshchikov]

Ios version (v12.7) is a bit different

1. If user declined access, reprompt on new getUserMedia
2. If user accepted and didn't reload the app, use cached permission
3. If user reloaded the miniapp, cache is not applied