The Godot Web Editor has some limitations compared to the native version.
Its main focus is education and experimentation;
it is not recommended for production.
Refer to the
Web editor documentation for usage instructions and limitations.
The web server does not support cross-origin isolation,
which is required for the Godot Web Editor to function.
Reasons for cross-origin isolation being disabled:
If you are self-hosting the web editor,
Exporting for the Web - Threads for more information.