103 lines
3.0 KiB
JavaScript
103 lines
3.0 KiB
JavaScript
this.workbox = this.workbox || {};
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this.workbox.navigationPreload = (function (exports, logger_js) {
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'use strict';
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try {
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self['workbox:navigation-preload:5.1.4'] && _();
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} catch (e) {}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* @return {boolean} Whether or not the current browser supports enabling
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* navigation preload.
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*
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* @memberof module:workbox-navigation-preload
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*/
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function isSupported() {
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return Boolean(self.registration && self.registration.navigationPreload);
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}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* If the browser supports Navigation Preload, then this will disable it.
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*
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* @memberof module:workbox-navigation-preload
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*/
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function disable() {
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if (isSupported()) {
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self.addEventListener('activate', event => {
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event.waitUntil(self.registration.navigationPreload.disable().then(() => {
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{
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logger_js.logger.log(`Navigation preload is disabled.`);
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}
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}));
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});
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} else {
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{
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logger_js.logger.log(`Navigation preload is not supported in this browser.`);
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}
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}
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}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* If the browser supports Navigation Preload, then this will enable it.
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*
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* @param {string} [headerValue] Optionally, allows developers to
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* [override](https://developers.google.com/web/updates/2017/02/navigation-preload#changing_the_header)
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* the value of the `Service-Worker-Navigation-Preload` header which will be
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* sent to the server when making the navigation request.
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*
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* @memberof module:workbox-navigation-preload
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*/
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function enable(headerValue) {
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if (isSupported()) {
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self.addEventListener('activate', event => {
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event.waitUntil(self.registration.navigationPreload.enable().then(() => {
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// Defaults to Service-Worker-Navigation-Preload: true if not set.
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if (headerValue) {
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self.registration.navigationPreload.setHeaderValue(headerValue);
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}
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{
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logger_js.logger.log(`Navigation preload is enabled.`);
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}
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}));
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});
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} else {
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{
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logger_js.logger.log(`Navigation preload is not supported in this browser.`);
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}
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}
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}
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exports.disable = disable;
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exports.enable = enable;
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exports.isSupported = isSupported;
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return exports;
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}({}, workbox.core._private));
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