Merge pull request #237 from impak-finance/fix-check-session-iframe-infinit-cb

Fixed infinite callback loop in the check-session iframe

oidc_provider/templates/oidc_provider/check_session_iframe.html

@@ -9,6 +9,10 @@
             window.addEventListener("message", receiveMessage, false);
 
             function receiveMessage(e) {
+                if (!e.data || typeof e.data != 'string' || e.data == 'error') {
+                    return;
+                }
+
                 var status;
                 try {
                     var clientId = e.data.split(' ')[0];