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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1273251
const {NetUtil} = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
ChromeUtils.importESModule("resource://gre/modules/Timer.sys.mjs");
const {TestUtils} = ChromeUtils.importESModule("resource://testing-common/TestUtils.sys.mjs");
function getWindowlessBrowser(url) {
let ssm = Services.scriptSecurityManager;
let uri = NetUtil.newURI(url);
let principal = ssm.createContentPrincipal(uri, {});
let webnav = Services.appShell.createWindowlessBrowser(false);
let docShell = webnav.docShell;
docShell.createAboutBlankContentViewer(principal, principal);
return webnav;
}
function StubPolicy(id) {
return new WebExtensionPolicy({
id,
mozExtensionHostname: id,
baseURL: `file:///{id}`,
allowedOrigins: new MatchPatternSet([]),
localizeCallback(string) {},
});
}
add_task(async function() {
let policy = StubPolicy("foo");
policy.active = true;
let webnavA = getWindowlessBrowser("moz-extension://foo/a.html");
let webnavB = getWindowlessBrowser("moz-extension://foo/b.html");
let winA = Cu.waiveXrays(webnavA.document.defaultView);
let winB = Cu.waiveXrays(webnavB.document.defaultView);
winB.winA = winA;
winB.eval(`winA.thing = {foo: "bar"};`);
let getThing = winA.eval(String(() => {
try {
return thing.foo;
} catch (e) {
return String(e);
}
}));
// Check that the object can be accessed normally before windowB is closed.
equal(getThing(), "bar");
webnavB.close();
// Wrappers are nuked asynchronously, so wait for that to happen.
await TestUtils.topicObserved("inner-window-nuked");
// Check that it can't be accessed after he window has been closed.
let result = getThing();
ok(/dead object/.test(result),
`Result should show a dead wrapper error: ${result}`);
webnavA.close();
policy.active = false;
});
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