Simon Willison’s Weblog

Why do some websites implement their logout link as a form post via JavaScript versus a plain old GET request?

16th October 2010

My answer to Why do some websites implement their logout link as a form post via JavaScript versus a plain old GET request? on Quora

Probably because if you implement logout as a GET action, I can force you to log out of a site by tricking you in to visiting a page with an <img src="http://yoursite.com/logout/" width="1" height="1"> element on it.