Last modified: 2014-02-12 23:54:13 UTC
There are some hacks that check HTTP_APPLICATION_VERSION and hide the header or logo depending on settings that came from our old iPhone and Android apps that did screen scraping. These old apps are dead and we should remove the special-cases, which had caching issues anyway.
This appears to have been resolved with https://gerrit.wikimedia.org/r/#/c/23600/