Logout: GET or POST?

Use POST.

In 2010, using GET was probably an acceptable answer. But today (in 2013), browsers will pre-fetch pages they “think” you will visit next.

Here is one of the StackOverflow developers talking about this issue on twitter:

I’d like to thank my bank for making log off a GET request, and the Chrome team for handy URL prefetching.- Nick Craver (@Nick_Craver) January 29, 2013

fun fact: StackOverflow used to handle log-out via GET, but not anymore.

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