Comment 7 for bug 1751498

The Firefox login issue can be resolved by going to https://host.domain.tld:7682/ This appears to be necessary if you aren't using a proxy. I believe Firefox stores certificate exceptions via host and port. Using a "valid" certificate avoids this.

I was able to get offline mode to work by deleting the IndexedDB for my site in Chromium and then logging into the web staff client again.

I have not, however, been able to get Register Patron to load in offline mode, even after editing a patron in the web staff client, even after registering a patron.

The above is still with the latest master, though I had applied an unrelated branch.