/** * Any copyright is dedicated to the Public Domain. * http://creativecommons.org/publicdomain/zero/1.0/ */ onmessage = function(event) { postMessage({ event: "XMLHttpRequest", status: new XMLHttpRequest() instanceof XMLHttpRequest, last: false, }); postMessage({ event: "XMLHttpRequestUpload", status: new XMLHttpRequest().upload instanceof XMLHttpRequestUpload, last: true, }); };