So, I was taking part in a game jam and built my game to web so it would be easy to rate it but at first it said
"Error
The following features required to run Godot projects on the Web are missing:
Cross Origin Isolation - Check web server configuration (send correct headers)
SharedArrayBuffer - Check web server configuration (send correct headers)"
I fixed it by ticking a box called SharedArrayBuffer experimental and then it would run, but it would take a long time and the browser would freeze and say page is unresponsive after about a minute you would be able to play it. I followed the procedure of porting games to web that Godot 3 required, has anything changed since then with the exporting process.
here is my game link so you can test it: https://kayfall9.itch.io/pogodoc

    KayfallWaterfall I've tested the game, game is ok, loading time a bit long, firefox use quite a lot of CPU but the game, I can say that this time, sucks. I don't understand what does it means to use a key and a controller axis, instructions have to be better than that, plus, the character barely move and it's game over right away when some missile doctor fall down the top of the screen... but at least technically, it's working.

        Very fast. AMD 5800X3D + 6950XT + 1GB internet.

        It took 12.68 s (one shot, it could be less or more) according to Firefox to load and launch the game on my setup (Asus ROG G750 JH). I just figure out we don't control the virus cell but some doctor... I thought it was the other way around initially. Not so obvious considering the tiny life-span we've got vs a not so deadly, but huge, virus after all.