id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
22258	nocache_headers fail to prevent aggressive caching in Chrome	andy	nacin	"In Chrome 22, a response with a valid Last-Modified header will be cached despite Cache-Control and Expires headers. So even though the user is logged in, the resource is cached and the browser sends If-Modified-Since with subsequent requests. This can result in a strange, partially-logged out experience with batcache under certain conditions.

In wp_get_nocache_headers(), the Last-Modified header is set to the current time. Setting its value to the empty string resolves the issue.

I will post two patches: one which only empties the Last-Modified header in the array, another which also removes the header when the header_remove() function is defined (PHP >= 5.3)."	defect (bug)	closed	normal	3.5	General	3.5	normal	fixed	has-patch commit	sirzooro slene