Ok I've found that we have an inconsistent situation when the wiki.ubuntu.com requires the cookie to be MOIN_SESSION_80_ROOT even over https, whereas wiki.canonical.com requires it to be MOIN_SESSION_443_ROOT over https. This seems to be a fail.
I've played with this and put together a patch which just tries all three in order till one works. This seems to work for me on all the pages I've tried.
Ok I've found that we have an inconsistent situation when the wiki.ubuntu.com requires the cookie to be MOIN_SESSION_ 80_ROOT even over https, whereas wiki.canonical.com requires it to be MOIN_SESSION_ 443_ROOT over https. This seems to be a fail.
I've played with this and put together a patch which just tries all three in order till one works. This seems to work for me on all the pages I've tried.