The app-id isn't that important to our usage in our bubblewrap sandbox so instead of erroring we can generate an id without any real downsides.
Pull request: https://github.com/WebKit/WebKit/pull/12587
Committed 262947@main (2bab2a58e316): <https://commits.webkit.org/262947@main> Reviewed commits have been landed. Closing PR #12587 and removing active labels.