const source = "http://example.com/browser/toolkit/components/viewsource/test/browser/file_bug464222.html"; add_task(function *() { let viewSourceTab = yield* openDocumentSelect(source, "a"); let href = yield ContentTask.spawn(viewSourceTab.linkedBrowser, { }, function* () { return content.document.querySelectorAll("a[href]")[0].href; }); is(href, "view-source:" + source, "Relative links broken?"); gBrowser.removeTab(viewSourceTab); });