messages with single ticks were not getting sent properly

Author: Billy Clark

themes/material/mfa/prompt-for-mfa-backupcode.php

@@ -68,7 +68,7 @@
                 </div>
 
                 <script>
-                    ga('send','event','error','backupcode','<?= $message ?>');
+                    ga('send','event','error','backupcode',<?= json_encode($message) ?>);
                 </script>
                 <?php
                 }

themes/material/mfa/prompt-for-mfa-totp.php

@@ -67,7 +67,7 @@
                 </div>
 
                 <script>
-                    ga('send','event','error','totp','<?= $message ?>');
+                    ga('send','event','error','totp',<?= json_encode($message) ?>);
                 </script>
                 <?php
                 }

themes/material/mfa/prompt-for-mfa-u2f.php

@@ -107,7 +107,7 @@ function createHiddenInput(name) {
                 if (! empty($message)) {
                 ?>
                 <script>
-                    ga('send','event','error','u2f','<?= $message ?>');
+                    ga('send','event','error','u2f',<?= json_encode($message) ?>);
                 </script>
                 <?php
                 }