Unable to fetch iOS webapp files on manifest update. 401 unauthorized
basic-authentication, cache-manifest, caching, html, web-applications
Solution
Safari is much more aware of HTTP Basic Auth, but web.app (the home screen web app handler, which is basically a UIWebView wrapper) isn't as full-featured and doesn't appear to support basic auth.
It seems you may need to work around this with either a server-side solution to append an authentication key to the filename (such as application.css?longhexkey) to bypass basic auth, or go with a more traditional login form (which may require significant changes to your app)
Same issue on Sencha forums: Unanswered: Forcing re-authentication after offline usage on iOS devices?
Problem
I have a HTML5 webapp which is running perfectly when served via the IIS without authentication. Is is using a cache.manifest file. Both when running in safari, and as an "add to homescreen" fullscreen app, once I update the manifest file on the server, and the app will update. When I turn on authentication on all files except the cache.manifest, then I only see the update when running it in the safari browser. If I add it to the homescreen, I am not able to make the app update the cache. If I wireshark the traffic on the server, I can see the manifest file is fetched without problems, but all the files in the manifest file hits a 401 Unautorized error. Any idea how I can fix this? Running it in the safari browser is working.. Any help is highly appreciated.