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Last active May 18, 2018 17:23
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Ensure HTTP redirects are not cached by client browser.
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README.md

Ensure HTTP redirects are not cached

Chrome (at least) likes to cache HTTP redirects, an issue if you are running logging/reporting on those redirect actions server side. Combat this with some HTTP headers.

Location: http://domain.com/redirect
Cache-Control: must-revalidate,no-cache,no-store
Expires: Sat, 01 Jan 2000 00:00:00 GMT

Or in PHP land that could be...

<?php
header('Location: http://domain.com/redirect',true,301);
header('Cache-Control: must-revalidate,no-cache,no-store');
header('Expires: Sat, 01 Jan 2000 00:00:00 GMT');

The magic for Google Chrome in particular is the use of no-store.

See more about that here: https://code.google.com/p/chromium/issues/detail?id=28035.

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