Just exported as HTML, worked out of the box, it took 5 minutes. I previously used libGDX, which uses GWT to deploy a Java game as JavaScript. It was sooo fragile and hard to get right, it usually took me at least 4 hours, and often another 4-8 hours before i had all quirks resolved (like my shaders not working, key inputs getting passed to the browser instead of the game, and so on). I love Godot :D

The game is Fluffensnuff. It has a working highscore per level and leaderboard for the whole game, which i'm so happy about :)