tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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browser_platform_emulation.js (1719B)

      1 /* Any copyright is dedicated to the Public Domain.
      2   http://creativecommons.org/publicdomain/zero/1.0/ */
      3 
      4 "use strict";
      5 
      6 const URL = "data:text/html;charset=utf-8,<iframe id='test-iframe'></iframe>";
      7 
      8 async function contentTaskNoOverride() {
      9  let docshell = docShell;
     10  is(
     11    docshell.browsingContext.customPlatform,
     12    "",
     13    "There should initially be no customPlatform"
     14  );
     15 }
     16 
     17 async function contentTaskOverride() {
     18  let docshell = docShell;
     19  is(
     20    docshell.browsingContext.customPlatform,
     21    "foo",
     22    "The platform should be changed to foo"
     23  );
     24 
     25  is(
     26    content.navigator.platform,
     27    "foo",
     28    "The platform should be changed to foo"
     29  );
     30 
     31  let frameWin = content.document.querySelector("#test-iframe").contentWindow;
     32  is(
     33    frameWin.navigator.platform,
     34    "foo",
     35    "The platform should be passed on to frames."
     36  );
     37 
     38  let newFrame = content.document.createElement("iframe");
     39  content.document.body.appendChild(newFrame);
     40 
     41  let newFrameWin = newFrame.contentWindow;
     42  is(
     43    newFrameWin.navigator.platform,
     44    "foo",
     45    "Newly created frames should use the new platform"
     46  );
     47 
     48  newFrameWin.location.reload();
     49  await ContentTaskUtils.waitForEvent(newFrame, "load");
     50 
     51  is(
     52    newFrameWin.navigator.platform,
     53    "foo",
     54    "New platform should persist across reloads"
     55  );
     56 }
     57 
     58 add_task(async function () {
     59  await BrowserTestUtils.withNewTab(
     60    { gBrowser, url: URL },
     61    async function (browser) {
     62      await SpecialPowers.spawn(browser, [], contentTaskNoOverride);
     63 
     64      let browsingContext = BrowserTestUtils.getBrowsingContextFrom(browser);
     65      browsingContext.customPlatform = "foo";
     66 
     67      await SpecialPowers.spawn(browser, [], contentTaskOverride);
     68    }
     69  );
     70 });