"use strict"; // Here we want to test that a new opened window shows the same UI of the // parent one if this has been loaded from a particular container. const BASE_URI = "http://mochi.test:8888/browser/browser/components/" + "contextualidentity/test/browser/empty_file.html"; add_setup(async function () { await SpecialPowers.pushPrefEnv({ set: [ ["privacy.userContext.enabled", true], ["browser.link.open_newwindow", 2], ], }); }); add_task(async function test() { info("Creating a tab with UCI = 1..."); let tab = BrowserTestUtils.addTab(gBrowser, BASE_URI, { userContextId: 1 }); is(tab.getAttribute("usercontextid"), "1", "New tab has UCI equal 1"); let browser = gBrowser.getBrowserForTab(tab); await BrowserTestUtils.browserLoaded(browser); info("Opening a new window from this tab..."); let newWinPromise = BrowserTestUtils.waitForNewWindow({ url: BASE_URI }); SpecialPowers.spawn(browser, [BASE_URI], function (url) { content.window.newWindow = content.window.open(url, "_blank"); }); let newWin = await newWinPromise; let newTab = newWin.gBrowser.selectedTab; is(newTab.getAttribute("usercontextid"), "1", "New tab has UCI equal 1"); info("Closing the new window and tab..."); await BrowserTestUtils.closeWindow(newWin); BrowserTestUtils.removeTab(tab); });