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Last active May 17, 2016 03:42
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Mozilla Cache Issues
Raw
README
The cache system in FF 46.0.1 appears to ignore meta tags with cache directives. Copy the meta.html and meta.php files below to a directory and start up a web server in that directory using php -S 127.0.0.1:8000. Then visit http://127.0.0.1:8000/meta.html and http://127.0.0.1:8000/meta.php. After visiting both pages open about:cache and look at the list of cached documents. You will see that meta.html is cached while meta.php is not.
Raw
meta.html
<html>
<head>
<meta http-equiv="Expires" CONTENT="-1">
<meta http-equiv="Cache-Control" CONTENT="no-cache">
<meta http-equiv="Cache-Control" CONTENT="no-store">
<meta http-equiv="Pragma" CONTENT="no-cache">
</head>
<body>
<h1>This page is cached.</h1>
</body>
</html>
Raw
meta.php
<?php
//set headers to NOT cache a page
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
?>
<html>
<head><title>Cached</title></head>
<body>
<h1>This page is not cached.</h1>
</body>
</html>
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