Funny enough but the MS Edge does it's weird stuff. Eventually it did load.
No issue with the Chrome though.
But anyway I'm seeing these errors in the console:
ERROR: Attempt to open script 'res://scripts/ProgramManager.gd' resulted in error 'File not found'.
ERROR: Attempt to open script 'res://scripts/pause/PauseManager.gd' resulted in error 'File not found'.
index.js:467 ERROR: Failed to instantiate an autoload, can't load from path: res://scripts/pause/PauseManager.gd.
...