Ticket #56515: 56515.patch

src/js/_enqueues/admin/site-health.js

@@ -35 +35 @@
                 successTimeout = setTimeout( function() {
                         successElement.addClass( 'hidden' );
                         // Remove the visually hidden textarea so that it isn't perceived by assistive technologies.
-                        if ( clipboard.clipboardAction.fakeElem && clipboard.clipboardAction.removeFake ) {
-                                clipboard.clipboardAction.removeFake();
-                        }
+                        if ( 'undefined' !== typeof( clipboard.clipboardAction ) ) {
+
+                if (clipboard.clipboardAction.fakeElem && clipboard.clipboardAction.removeFake) {
+
+                    clipboard.clipboardAction.removeFake();
+                }
+            }
                 }, 3000 );
 
                 // Handle success audible feedback.