Sorry to post here again, but I just wanted to comment that I really believe the more major issue is not Safari, but rather the itch desktop app's built-in browser. Enabling a feature when you submit your game should not cause the entire app to crash on page load, even if the feature is experimental. I don't believe this to be a problem with Godot, but a problem with Itch. With the rise in popularity of Godot for game jams, I just feel like this is an essential problem to fix as there are a lot of people who would rather use the desktop app. There has to be a work-around for this, even if it means the game doesn't embed or something.