WP_HTTP: Respect that some cookies do not have an expiration time, this is a valid use-case that WP_HTTP_Cookie::test() should not discard, a non-existant expiration date simply means to let it expire at the end of the session. Props mailnew2ster. Fixes #14191

git-svn-id: http://core.svn.wordpress.org/trunk@21226 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-http.php

@@ -1550,7 +1550,7 @@ class WP_Http_Cookie {
 	 */
 	function test( $url ) {
 		// Expires - if expired then nothing else matters
-		if ( time() > $this->expires )
+		if ( isset( $this->expires ) && time() > $this->expires )
 			return false;
 
 		// Get details on the URL we're thinking about sending to