Hmmm... here's what I'm seeing now:
-Firefox off line, go to
https://www.radishworks.com/SearchManager/Login.php... get the page "Firefox is currently in offline mode and can't browse the Web." Ie, FF does not appear to fall back to Login-Offline.php.
-In Chrome off line, it behaves as expected... going to Login.php actually goes to Login-Offline.php. HOwever, this appears to be a generic screen... tells you are you are logged in, and the team you are on, gives you options to Logout or Change Password. Across the top are mission related buttons. So you can't really go anywhere from there.
-In FF off line you can manually tell it to Login-Offline.php and see the same thing as in Chrome.
-If I'm offline and manually enter Missions-Offline.php in either browser, things work in an offline mode as expected (woohoo!).
-FF off line, if I manually tell it to go to the Missions.php screen, it goes to a cached copy of that page. It doens't go to the content of the Missions-Offline.php.
It's like the way FF uses the fallback function is glitched.
Matt