Ticket #40405: 40405.0.diff

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

@@ -4762 +4762 @@
                          */
                         populateChangesetUuidParam = function( isIncluded ) {
                                 var urlParser, queryParams;
+
+                                // Abort on IE9 which doesn't support history management.
+                                if ( ! history.replaceState ) {
+                                        return;
+                                }
+
                                 urlParser = document.createElement( 'a' );
                                 urlParser.href = location.href;
                                 queryParams = api.utils.parseQueryString( urlParser.search.substr( 1 ) );
@@ -4780 +4786 @@
                                 history.replaceState( {}, document.title, urlParser.href );
                         };
 
-                        if ( history.replaceState ) {
-                                changesetStatus.bind( function( newStatus ) {
-                                        populateChangesetUuidParam( '' !== newStatus && 'publish' !== newStatus );
-                                } );
-                        }
+                        changesetStatus.bind( function( newStatus ) {
+                                populateChangesetUuidParam( '' !== newStatus && 'publish' !== newStatus );
+                        } );
 
                         // Expose states to the API.
                         api.state = state;