file_base_uri_server.sjs

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// Custom *.sjs file specifically for the needs of

// https://bugzilla.mozilla.org/show_bug.cgi?id=1263286

"use strict";

const PRE_BASE = `

  <!DOCTYPE HTML>

  <html>

  <head>

  <title>Bug 1045897 - Test CSP base-uri directive</title>`;

const REGULAR_POST_BASE = `

  </head>

  <body onload='window.parent.postMessage({result: document.baseURI}, "*");'>

  <!-- just making use of the 'base' tag for this test -->

  </body>

  </html>`;

const SCRIPT_POST_BASE = `

  </head>

  <body>

  <script>

    document.getElementById("base1").removeAttribute("href");

    window.parent.postMessage({result: document.baseURI}, "*");

  </script>

  </body>

  </html>`;

function handleRequest(request, response) {

  const query = new URLSearchParams(request.queryString);

  // avoid confusing cache behaviors

  response.setHeader("Cache-Control", "no-cache", false);

  // Deliver the CSP policy encoded in the URL

  response.setHeader("Content-Security-Policy", query.get("csp"), false);

  // Send HTML to test allowed/blocked behaviors

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

  response.write(PRE_BASE);

  var base1 = '<base id="base1" href="' + query.get("base1") + '">';

  var base2 = '<base id="base2" href="' + query.get("base2") + '">';

  response.write(base1 + base2);

  if (query.get("action") === "enforce-csp") {

    response.write(REGULAR_POST_BASE);

    return;

  if (query.get("action") === "remove-base1") {

    response.write(SCRIPT_POST_BASE);

    return;

  // we should never get here, but just in case

  // return something unexpected

  response.write("do'h");