On Sun, May 4, 2014 at 10:58 PM, Gilles Dubuc <[email protected]> wrote:
> It seems like the browser will not always pick up/respect the > Cache-Control directive for the browser cache (I don't know why, could be > specific to my machine/OS X and I've wasted many hours already trying to > figure it out). I've found a workaround, which is using > Last-Modified/If-Modified-Since (which will trigger the 304 mechanism) in > addition to Cache-Control: https://gerrit.wikimedia.org/r/131425 It's > probably worth having that in general anyway, for older browsers. > After some testing and googling, it seems at least Firefox and Chrome ignore max-age when you refresh the page (but not when you navigate via links). Is it possible that you ran into that? This comment in the Chromium tracker has some explanation: https://code.google.com/p/chromium/issues/detail?id=1906#c6 I verified that this affects AJAX requests as well - the API requests are not cached when I press F5, but cached when I click on the "Page" tab (which links to itself) and reopen the same image. Some of the answers to this SO question have a lot of details about caching behavior across browsers: http://stackoverflow.com/q/385367/323407
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