https://bugzilla.wikimedia.org/show_bug.cgi?id=54647
--- Comment #16 from Bawolff (Brian Wolff) <bawolff...@gmail.com> --- (In reply to comment #15) > (In reply to comment #13) > > How is it possible that Firefox' hard reload has another effect on wiki > > servers than the one of other browsers? > > An empty cache (I mean really deleted, with an entirely new profile) loads a > > page the same way like a hard reload, I assume. > > A normal page load is likely to send headers that allow intermediate caches > to > return a cached version of the page, while a hard reload will probably > include > headers that instruct intermediate caches not to cache. > > In both Firefox and Chromium here a normal page load doesn't send any > "Cache-Control" or "Pragma" headers, a normal reload (F5) sends > "Cache-Control: > max-age=0" (but no "Pragma"), and a hard reload (Ctrl+F5) sends both > "Cache-Control: no-cache" and "Pragma: no-cache". Opera 16 seems to do the > same > thing. > > On the other hand, IE 9 and 10 and Opera 12 seem to send a "Cache-Control: > no-cache" with no "Pragma" header on any reload (both F5 and Ctrl+F5). I > don't > know whether that's actually the reason, but it's certainly plausible that > Wikimedia's caching layer was only revalidating in response to "Pragma: > no-cache" and not "Cache-Control: no-cache". Interesting. OTOH wget -S --header 'cache-control: no-cache' --header 'pragma: no-cache' 'http://en.wikipedia.org/wiki/Main_Page' has headers that still suggest a cache hit. -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
