diff --git a/resources/lang/en/texts.php b/resources/lang/en/texts.php
index ca5c1908fe..92a336ddfe 100644
--- a/resources/lang/en/texts.php
+++ b/resources/lang/en/texts.php
@@ -2772,6 +2772,7 @@ $LANG = array(
     'slack_incoming_webhooks' => 'Slack incoming webhooks',
     'accept' => 'Accept',
     'accepted_terms' => 'Successfully accepted the latest terms of service',
+    'invalid_url' => 'Invalid URL',
 
 );
 
diff --git a/resources/views/auth/login.blade.php b/resources/views/auth/login.blade.php
index 0f229e85da..16154922aa 100644
--- a/resources/views/auth/login.blade.php
+++ b/resources/views/auth/login.blade.php
@@ -146,13 +146,14 @@
                     showCancelButton: true,
                     confirmButtonText: 'Save',
                 }).then(function (value) {
-                    if (!value) {
+                    if (! value || value.indexOf('http') !== 0) {
+                        swal("{{ trans('texts.invalid_url') }}")
                         return;
                     }
                     value = value.replace(/\/+$/, '') + '/time_tracker';
                     localStorage.setItem('last:time_tracker:url', value);
                     location.reload();
-                })
+                }).catch(swal.noop);
             }
         @endif