Ticket #26952: 26952.10.patch

src/wp-includes/class-wp-editor.php

@@ -1091 +1091 @@
                         <div id="wp-link-update">
                                 <input type="submit" value="<?php esc_attr_e( 'Add Link' ); ?>" class="button-primary" id="wp-link-submit" name="wp-link-submit">
                         </div>
+                        <div id="wp-link-cancel">
+                                <a class="submitdelete deletion" href="#"><?php _e( 'Cancel' ); ?></a>
+                        </div>
                 </div>
                 </form>
                 </div>

src/wp-includes/js/wplink.js

@@ -38 +38 @@
                                 event.preventDefault();
                                 wpLink.update();
                         });
-                        inputs.close.add( inputs.backdrop ).click( function( event ) {
+                        inputs.close.add( inputs.backdrop ).add( '#wp-link-cancel a' ).click( function( event ) {
                                 event.preventDefault();
                                 wpLink.close();
                         });