"use strict"; SimpleTest.requestCompleteLog(); SpecialPowers.pushPrefEnv({ set: [["dom.require_user_interaction_for_beforeunload", false]], }); const FIRST_TAB = getRootDirectory(gTestPath) + "close_beforeunload_opens_second_tab.html"; const SECOND_TAB = getRootDirectory(gTestPath) + "close_beforeunload.html"; add_task(async function () { info("Opening first tab"); let firstTab = await BrowserTestUtils.openNewForegroundTab( gBrowser, FIRST_TAB ); let secondTabLoadedPromise; let secondTab; let tabOpened = new Promise(resolve => { info("Adding tabopen listener"); gBrowser.tabContainer.addEventListener( "TabOpen", function tabOpenListener(e) { info("Got tabopen, removing listener and waiting for load"); gBrowser.tabContainer.removeEventListener( "TabOpen", tabOpenListener, false, false ); secondTab = e.target; secondTabLoadedPromise = BrowserTestUtils.browserLoaded( secondTab.linkedBrowser, false, SECOND_TAB ); resolve(); }, false, false ); }); info("Opening second tab using a click"); await SpecialPowers.spawn(firstTab.linkedBrowser, [""], async function () { content.document.getElementsByTagName("a")[0].click(); }); info("Waiting for the second tab to be opened"); await tabOpened; info("Waiting for the load in that tab to finish"); await secondTabLoadedPromise; let closeBtn = secondTab.closeButton; info("closing second tab (which will self-close in beforeunload)"); closeBtn.click(); ok( secondTab.closing, "Second tab should be marked as closing synchronously." ); ok(!secondTab.linkedBrowser, "Second tab's browser should be dead"); ok(!firstTab.closing, "First tab should not be closing"); ok(firstTab.linkedBrowser, "First tab's browser should be alive"); info("closing first tab"); BrowserTestUtils.removeTab(firstTab); ok(firstTab.closing, "First tab should be marked as closing"); ok(!firstTab.linkedBrowser, "First tab's browser should be dead"); });