Ticket #26633: customize-controls.js.patch

src/wp-admin/js/customize-controls.js

@@ -705 +705 @@
                         body = $( document.body ),
                         overlay = body.children('.wp-full-overlay');
 
-                // Prevent the form from saving when enter is pressed.
-                $('#customize-controls').on( 'keydown', function( e ) {
-                        if ( $( e.target ).is('textarea') )
-                                return;
-
-                        if ( 13 === e.which ) // Enter
+                // Prevent the form from saving when enter is pressed on an input element.
+                $( '#customize-controls' ).on( 'keydown', function( e ) {
+                        var is_enter = ( 13 === e.which );
+                        if ( is_enter && $( e.target ).is( 'input:not([type=button])' ) ) {
                                 e.preventDefault();
-                });
+                        }
+                } );
 
                 // Initialize Previewer
                 previewer = new api.Previewer({