download_with_content_disposition_header.sjs

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

function handleRequest(request, response) {

  let page = "download";

  response.setStatusLine(request.httpVersion, "200", "OK");

  let [first, second] = request.queryString.split("=");

  let headerStr = first;

  if (second !== "none") {

    headerStr += "; filename=" + second;

  response.setHeader("Content-Disposition", headerStr);

  response.setHeader("Content-Type", "text/plain", false);

  response.setHeader("Content-Length", page.length + "", false);

  response.write(page);