Is it possible to stop browsers from caching favicon.ico?

Asked May 07 '14 at 02:38

Active May 07 '14 at 17:14

Viewed 1,191 times

I have /favicon.ico aliased to a PHP script that randomly chooses one of several icons every time it is accessed, by returning a Location header to the location of the chosen icon.

However, I want a (potentially) different icon to be shown each time, though Chrome (only browser I've tested) appears to cache the icon for quite some time. I have added these headers to both the favicon.ico redirection and the PNG icon files themselves, however, the icon still gets cached by the browser.

Cache-Control: no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: 0

I am using nginx. Is there any way to force the browser to refresh the icon every visit? Using the <link> tag in HTML is not an option for me.

edited May 07 '14 at 02:42

Giacomo1968

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asked May 07 '14 at 02:38

user1814016

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http://stackoverflow.com/questions/260857/changing-website-favicon-dynamically https://gist.github.com/mathiasbynens/428626 – ɹɐqʞɐ zoɹǝɟ May 07 '14 at 02:49
i use the faviocon on the tab and bookmarks to identify a site, changing it frequently seems like a bad idea. – May 07 '14 at 03:15
@user790454 see last line in question – user1814016 May 07 '14 at 03:29
@user790454 What do you mean by "Using the tag in HTML is not an option for me"? You can't use a tag at all? Why is that? There is a quite simple solution to your problem using a tag, this is why I'm asking. – philippe_b May 07 '14 at 13:20
@philippe_b bro you've mis-tagged me,instead of OP :D – ɹɐqʞɐ zoɹǝɟ May 07 '14 at 16:17
Damn! Sorry for the mistake... @user1814016, my previous comment was for you! – philippe_b May 07 '14 at 17:15
As of 2020, this caching behavior is still happening in Chrome. I've filed a bug report: https://bugs.chromium.org/p/chromium/issues/detail?id=1132138 – Trevor Burnham Sep 25 '20 at 01:31

Is it possible to stop browsers from caching favicon.ico?

0 Answers0