http://stackoverflow.com/questions/49547/making-sure-a-web-page-is-not-cached-across-all-browsers/2068407#2068407
The correct minimum set of headers that works across all mentioned browsers:
Cache-Control: no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: 0
Using PHP:
header('Cache-Control: no-cache, no-store, must-revalidate'); // HTTP 1.1.
header('Pragma: no-cache'); // HTTP 1.0.
header('Expires: 0'); // Proxies.
Using Java Servlet:
response.setHeader("Cache-Control", ......
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