| /* |
| * Copyright 2024 Google LLC. |
| * Copyright (c) Microsoft Corporation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| /** |
| * A URL matches about:blank if its scheme is "about", its path contains a single string |
| * "blank", its username and password are the empty string, and its host is null. |
| * https://html.spec.whatwg.org/multipage/urls-and-fetching.html#matches-about:blank |
| * @param {string} url |
| * @return {boolean} |
| */ |
| export function urlMatchesAboutBlank(url) { |
| // An empty string is a special case, and considered to be about:blank. |
| // https://html.spec.whatwg.org/multipage/nav-history-apis.html#window-open-steps |
| if (url === '') { |
| return true; |
| } |
| try { |
| const parsedUrl = new URL(url); |
| const schema = parsedUrl.protocol.replace(/:$/, ''); |
| return (schema.toLowerCase() === 'about' && |
| parsedUrl.pathname.toLowerCase() === 'blank' && |
| parsedUrl.username === '' && |
| parsedUrl.password === '' && |
| parsedUrl.host === ''); |
| } |
| catch (err) { |
| // Wrong URL considered do not match about:blank. |
| if (err instanceof TypeError) { |
| return false; |
| } |
| // Re-throw other unexpected errors. |
| throw err; |
| } |
| } |
| //# sourceMappingURL=urlHelpers.js.map |
