Not working on Firefox.

- Whenever a repo is uploaded in Firefox, the loader keeps spinning and nothing happens.
- No error messages are seen in the console.
   - Weirdly enough, even the error message that should show up in the console when the directory picker is 'cancelled' doesn't pop up.

Checked on Windows 11 Home v21H2 OS build 22000.795, with Firefox v102.0.1 (64-bit).
