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Editing File: /home/ubuntu/todaykat-frontend-base/node_modules/workbox-streams/src/utils/createHeaders.ts

/*
  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 '../_version.js';

/**
 * This is a utility method that determines whether the current browser supports
 * the features required to create streamed responses. Currently, it checks if
 * [`ReadableStream`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream/ReadableStream)
 * is available.
 *
 * @private
 * @param {HeadersInit} [headersInit] If there's no `Content-Type` specified,
 * `'text/html'` will be used by default.
 * @return {boolean} `true`, if the current browser meets the requirements for
 * streaming responses, and `false` otherwise.
 *
 * @memberof workbox-streams
 */
function createHeaders(headersInit = {}): Headers {
  // See https://github.com/GoogleChrome/workbox/issues/1461
  const headers = new Headers(headersInit);
  if (!headers.has('content-type')) {
    headers.set('content-type', 'text/html');
  }
  return headers;
}

export {createHeaders};

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