Would you be able to provide us with a minimal repro? I'd love to fix this.
It works for me with our sample, so there's something else going on.

That's strange. We haven't had the bandwidth to create a sample yet but it's definitely still freezing up like before.
I'd be curious if it's happening with others using the SDK.

I'll give this another try.

web.zip
UnityWebglSentryTestAssets.zip

Attached are two zips with a a sample project that replicates the issue. SentryTestAssets.zip is the Assets folder of the test project. It's just an image displayed in webgl. But the web template used has a LOAD button to load the unity app. When loaded, there will be a QUIT button to close the Unity app. Pressing QUIT you will notice the web page freezes. The console log shows "Quitting..." but it never completes.

web.zip is the built version of this project. You can run this on a localhost easily to test it.
Please expedite this issue as it is a launch blocker for us that is imminent.

Thanks a lot for the repro! It's hugely appreciated!

It looks like this is still related to deadlocking during shutdown of the SDK. We'll try to minimize the repro on the .NET SDK. Hopefully, this is just the Metrics acting up.

thanks for the update