36 lines
1.0 KiB
JavaScript
36 lines
1.0 KiB
JavaScript
/**
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* Copyright 2020 The AMP HTML Authors. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS-IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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/**
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* Returns true if the string specifies an image src URL (relative or absolute using http or https).
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*
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* @param {string} src the input string
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* @returns {boolean}
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*/
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const isValidImageSrcURL = (src) => {
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try {
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return new URL(src, 'https://example.com').protocol.startsWith('http');
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} catch (e) {
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// invalid URL
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return false;
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}
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};
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module.exports = {
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isValidImageSrcURL,
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};
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