Ticket #40493: 40493.diff

src/js/_enqueues/admin/user-profile.js

@@ -5 +5 @@
 /* global ajaxurl, pwsL10n */
 (function($) {
         var updateLock = false,
+                isSubmitting = false,
                 __ = wp.i18n.__,
                 $pass1Row,
                 $pass1,
@@ -14 +15 @@
                 $toggleButton,
                 $submitButtons,
                 $submitButton,
-                currentPass;
+                currentPass,
+                $form,
+                originalFormContent;
 
         function generatePassword() {
                 if ( typeof zxcvbn !== 'function' ) {
@@ -377 +380 @@
                 });
 
                 bindPasswordForm();
+
+                $submitButtons.on( 'click', function () {
+                        isSubmitting = true;
+                });
+
+                $form = $('#your-profile, #createuser');
+                originalFormContent = $form.serialize();
         });
 
         $( '#destroy-sessions' ).on( 'click', function( e ) {
@@ -400 +410 @@
         window.generatePassword = generatePassword;
 
         /* Warn the user if password was generated but not saved */
-        $( window ).on( 'beforeunload', function () {
+        $( window ).on( 'beforeunload', function ( ) {
                 if ( true === updateLock ) {
                         return __( 'Your new password has not been saved.' );
                 }
+                if( originalFormContent !== $form.serialize() && ! isSubmitting ) {
+                        return __( 'Changes that you made may not be saved.' );
+                }
         } );
 
 })(jQuery);