fix remote files calling

includes/classes/wp-maintenance-mode-admin.php

@@ -83,8 +83,13 @@ public function enqueue_admin_styles() {
 			if ( $this->plugin_screen_hook_suffix === $screen->id ) {
 				$wp_scripts = wp_scripts();
 				$ui         = $wp_scripts->query( 'jquery-ui-core' );
-
-				wp_enqueue_style( $this->plugin_slug . '-admin-jquery-ui-styles', '//code.jquery.com/ui/' . ( ! empty( $ui->ver ) ? $ui->ver : '1.11.4' ) . '/themes/smoothness/jquery-ui' . WPMM_ASSETS_SUFFIX . '.css', array(), WP_Maintenance_Mode::VERSION );
+				$allowed_versions = [
+					'1.11.4' => true,
+					'1.12.1' => true,
+					'1.13.0' => true,
+					'1.13.1' => true,
+				];
+				wp_enqueue_style( $this->plugin_slug . '-admin-jquery-ui-styles', WPMM_CSS_URL . 'jquery-ui-styles/' . ( ! empty( $ui->ver ) ? ( isset( $allowed_versions[ $ui->ver ] ) ? $ui->ver : '1.13.1' ) : '1.11.4' ) . '/jquery-ui' . WPMM_ASSETS_SUFFIX . '.css', array(), WP_Maintenance_Mode::VERSION );
 				wp_enqueue_style( $this->plugin_slug . '-admin-chosen', WPMM_CSS_URL . 'chosen' . WPMM_ASSETS_SUFFIX . '.css', array(), WP_Maintenance_Mode::VERSION );
 				wp_enqueue_style( $this->plugin_slug . '-admin-timepicker-addon-script', WPMM_CSS_URL . 'jquery-ui-timepicker-addon' . WPMM_ASSETS_SUFFIX . '.css', array(), WP_Maintenance_Mode::VERSION );
 				wp_enqueue_style( $this->plugin_slug . '-admin-styles', WPMM_CSS_URL . 'style-admin' . WPMM_ASSETS_SUFFIX . '.css', array( 'wp-color-picker' ), WP_Maintenance_Mode::VERSION );

includes/classes/wp-maintenance-mode.php

@@ -955,7 +955,7 @@ public function add_js_files() {
 			$wp_scripts = wp_scripts();
 
 			$scripts = array(
-				'jquery'   => ! empty( $wp_scripts->registered['jquery-core'] ) ? site_url( $wp_scripts->registered['jquery-core']->src ) : '//ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery' . WPMM_ASSETS_SUFFIX . '.js',
+				'jquery' => site_url( "/wp-includes/js/jquery/jquery" . WPMM_ASSETS_SUFFIX . ".js" ),
 				'fitvids'  => WPMM_JS_URL . 'jquery.fitvids' . WPMM_ASSETS_SUFFIX . '.js',
 				'frontend' => WPMM_JS_URL . 'scripts' . WPMM_ASSETS_SUFFIX . '.js?ver=' . self::VERSION,
 			);

package.json

@@ -22,7 +22,7 @@
     "cssnano": "^4.1.11",
     "grunt": "^1.4.0",
     "grunt-contrib-jshint": "^2.1.0",
-    "grunt-contrib-uglify-es": "git://github.com/gruntjs/grunt-contrib-uglify.git#harmony",
+    "grunt-contrib-uglify-es": "^3.3.0",
     "grunt-contrib-watch": "^1.1.0",
     "grunt-postcss": "^0.9.0",
     "grunt-version": "^3.0.0",