PWA

node_modules/workbox-navigation-preload/src/disable.ts

@@ -0,0 +1,39 @@
+/*
+  Copyright 2018 Google LLC
+
+  Use of this source code is governed by an MIT-style
+  license that can be found in the LICENSE file or at
+  https://opensource.org/licenses/MIT.
+*/
+
+import {logger} from 'workbox-core/_private/logger.js';
+import {isSupported} from './isSupported.js';
+import './_version.js';
+
+// Give TypeScript the correct global.
+declare let self: ServiceWorkerGlobalScope;
+
+/**
+ * If the browser supports Navigation Preload, then this will disable it.
+ *
+ * @memberof workbox-navigation-preload
+ */
+function disable(): void {
+  if (isSupported()) {
+    self.addEventListener('activate', (event: ExtendableEvent) => {
+      event.waitUntil(
+        self.registration.navigationPreload.disable().then(() => {
+          if (process.env.NODE_ENV !== 'production') {
+            logger.log(`Navigation preload is disabled.`);
+          }
+        }),
+      );
+    });
+  } else {
+    if (process.env.NODE_ENV !== 'production') {
+      logger.log(`Navigation preload is not supported in this browser.`);
+    }
+  }
+}
+
+export {disable};