async function test() { waitForExplicitFinish(); const target = "http://example.com/browser/dom/url/tests/empty.html"; info("Loading download page..."); let tab = BrowserTestUtils.addTab(gBrowser, target); registerCleanupFunction(function () { gBrowser.removeTab(tab); window.restore(); }); gBrowser.selectedTab = tab; BrowserTestUtils.browserLoaded(tab.linkedBrowser, false, target).then( async () => { info("Page loaded."); let allDownloads = await Downloads.getList(Downloads.ALL); let started = new Promise(resolve => { if ( Services.prefs.getBoolPref( "browser.download.always_ask_before_handling_new_types", false ) ) { // If the download modal is enabled, wait for it to open and declare the // download to have begun when we see it. let listener = { onOpenWindow(aXULWindow) { info("Download modal shown..."); Services.wm.removeListener(listener); let domwindow = aXULWindow.docShell.domWindow; function onModalLoad() { domwindow.removeEventListener("load", onModalLoad, true); is( domwindow.document.location.href, "chrome://mozapps/content/downloads/unknownContentType.xhtml", "Download modal loaded..." ); domwindow.close(); info("Download modal closed."); resolve(); } domwindow.addEventListener("load", onModalLoad, true); }, onCloseWindow() {}, }; Services.wm.addListener(listener); } else { // With no download modal, the download will begin on its own, so we need // to wait to be notified by the downloads list when that happens. let downloadView = { onDownloadAdded(download) { ok(true, "Download was started."); download.cancel(); allDownloads.removeView(this); allDownloads.removeFinished(); resolve(); }, }; allDownloads.addView(downloadView); } }); let revoked = SpecialPowers.spawn( tab.linkedBrowser, [], () => new Promise(resolve => { info("Creating BlobURL..."); let blob = new content.Blob(["test"], { type: "text/plain" }); let url = content.URL.createObjectURL(blob); let link = content.document.createElement("a"); link.href = url; link.download = "example.txt"; content.document.body.appendChild(link); info("Clicking HTMLAnchorElement..."); link.click(); content.URL.revokeObjectURL(url); info("BlobURL revoked."); resolve(); }) ); info("Waiting for async activities..."); await Promise.all([revoked, started]); ok(true, "Exiting test."); finish(); } ); }