display flash errors for external auths like saml or oidc on the login screen #6154

Signed-off-by: si458 <simonsmith5521@gmail.com>

views/login.handlebars

@@ -361,6 +361,19 @@
                 }
             }
 
+            // Display flash error Messages
+            var flashErrors = JSON.parse('{{{flashErrors}}}');
+            if (flashErrors && (flashErrors.length > 0)) {
+                var msg = '';
+                for (i = 0; i < flashErrors.length; i++) {
+                    if (flashErrors[i]) {
+                        msg += '<span class="msg error"><b style=color:#8C001A>' + flashErrors[i] + '<b></span><br /><br />';
+                    }
+                }
+                QH('message1', msg);
+                QV('message1', true);
+            }
+
             // Fix links if a loginKey if used
             var urlargs = parseUriArgs();
             if (urlargs.key) {