/* Any copyright is dedicated to the Public Domain. * http://creativecommons.org/publicdomain/zero/1.0/ */ add_task(async function thumbnails_bg_no_alert() { let url = "data:text/html,"; ok(!thumbnailExists(url), "Thumbnail file should not already exist."); let [capturedURL] = await bgCapture(url); is(capturedURL, url, "Captured URL should be URL passed to capture."); ok( thumbnailExists(url), "Thumbnail file should exist even though it alerted." ); removeThumbnail(url); });