browser_privatebrowsing_newtab_from_popup.js

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/**

 * Tests that a popup window in private browsing window opens

 * new tab links in the original private browsing window as

 * new tabs.

 * This is a regression test for bug 1202634.

*/

// We're able to sidestep some quote-escaping issues when

// nesting data URI's by encoding the second data URI in

// base64.

const POPUP_BODY_BASE64 = btoa(`<a href="http://example.com/" target="_blank"

                                   id="second">

                                  Now click this

                                </a>`);

const POPUP_LINK = `data:text/html;charset=utf-8;base64,${POPUP_BODY_BASE64}`;

const WINDOW_BODY = `data:text/html,

                     <a href="%23" id="first"

                        onclick="window.open('${POPUP_LINK}', '_blank',

                                             'width=630,height=500')">

                       First click this.

                     </a>`;

add_task(async function test_private_popup_window_opens_private_tabs() {

  // allow top level data: URI navigations, otherwise clicking a data: link fails

  await SpecialPowers.pushPrefEnv({

    set: [["security.data_uri.block_toplevel_data_uri_navigations", false]],

});

  let privWin = await BrowserTestUtils.openNewBrowserWindow({ private: true });

  // Sanity check - this browser better be private.

ok(

    PrivateBrowsingUtils.isWindowPrivate(privWin),

    "Opened a private browsing window."

);

  // First, open a private browsing window, and load our

  // testing page.

  let privBrowser = privWin.gBrowser.selectedBrowser;

  BrowserTestUtils.startLoadingURIString(privBrowser, WINDOW_BODY);

  await BrowserTestUtils.browserLoaded(privBrowser);

  // Next, click on the link in the testing page, and ensure

  // that a private popup window is opened.

  let openedPromise = BrowserTestUtils.waitForNewWindow({ url: POPUP_LINK });

  await BrowserTestUtils.synthesizeMouseAtCenter("#first", {}, privBrowser);

  let popupWin = await openedPromise;

ok(

    PrivateBrowsingUtils.isWindowPrivate(popupWin),

    "Popup window was private."

);

  // Now click on the link in the popup, and ensure that a new

  // tab is opened in the original private browsing window.

  let newTabPromise = BrowserTestUtils.waitForNewTab(privWin.gBrowser);

  let popupBrowser = popupWin.gBrowser.selectedBrowser;

  await BrowserTestUtils.synthesizeMouseAtCenter("#second", {}, popupBrowser);

  let newPrivTab = await newTabPromise;

  // Ensure that the newly created tab's browser is private.

ok(

    PrivateBrowsingUtils.isBrowserPrivate(newPrivTab.linkedBrowser),

    "Newly opened tab should be private."

);

  // Clean up

  BrowserTestUtils.removeTab(newPrivTab);

  await BrowserTestUtils.closeWindow(popupWin);

  await BrowserTestUtils.closeWindow(privWin);

});