What language is is in?
GDscript
Did you set it to "This file will be played in the browser"
Maybe try building it again; could be a build error
You could also try reuploading to itch.io
It is set for "file will be played in browser." I tried rebuilding it and uploading it to itch.io again, it still doesn't work.
hmm...
Are you sure you made a build for the browser?
100% certain
