diff --git a/admin/code/LeftAndMain.php b/admin/code/LeftAndMain.php
index a09d204af..b39a19469 100644
--- a/admin/code/LeftAndMain.php
+++ b/admin/code/LeftAndMain.php
@@ -403,6 +403,7 @@ class LeftAndMain extends Controller implements PermissionProvider {
 	 * This is used in the CMS.
 	 */
 	public function ping() {
+		Requirements::clear();
 		return 1;
 	}
 	
diff --git a/admin/javascript/LeftAndMain.Ping.js b/admin/javascript/LeftAndMain.Ping.js
index b129c9608..9638f6a15 100644
--- a/admin/javascript/LeftAndMain.Ping.js
+++ b/admin/javascript/LeftAndMain.Ping.js
@@ -40,6 +40,7 @@
 					$.ajax({
 						url: 'admin/security/ping',
 						global: false,
+						type: 'POST',
 						complete: onSessionLost
 					});
 				}, this.getPingIntervalSeconds() * 1000);