43 lines
1.5 KiB
JavaScript
43 lines
1.5 KiB
JavaScript
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/*
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Copyright 2019 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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import { removeIgnoredSearchParams } from './removeIgnoredSearchParams.js';
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import '../_version.js';
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/**
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* Generator function that yields possible variations on the original URL to
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* check, one at a time.
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*
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* @param {string} url
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* @param {Object} options
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*
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* @private
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* @memberof workbox-precaching
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*/
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export function* generateURLVariations(url, { ignoreURLParametersMatching = [/^utm_/, /^fbclid$/], directoryIndex = 'index.html', cleanURLs = true, urlManipulation, } = {}) {
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const urlObject = new URL(url, location.href);
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urlObject.hash = '';
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yield urlObject.href;
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const urlWithoutIgnoredParams = removeIgnoredSearchParams(urlObject, ignoreURLParametersMatching);
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yield urlWithoutIgnoredParams.href;
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if (directoryIndex && urlWithoutIgnoredParams.pathname.endsWith('/')) {
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const directoryURL = new URL(urlWithoutIgnoredParams.href);
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directoryURL.pathname += directoryIndex;
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yield directoryURL.href;
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}
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if (cleanURLs) {
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const cleanURL = new URL(urlWithoutIgnoredParams.href);
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cleanURL.pathname += '.html';
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yield cleanURL.href;
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}
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if (urlManipulation) {
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const additionalURLs = urlManipulation({ url: urlObject });
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for (const urlToAttempt of additionalURLs) {
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yield urlToAttempt.href;
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}
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}
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}
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