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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Security-Policy" content="img-src https://*;">
<script>
async function timeout (cmd) {
const timer = new Promise((resolve, reject) => {
const id = setTimeout(() => {
clearTimeout(id)
reject(new Error('Promise timed out!'))
}, 750)
})
return Promise.race([cmd, timer])
}
let ourOpener = window.opener;
if (location.search.includes("close")) {
window.close();
}
document.addEventListener('DOMContentLoaded', async () => {
const frame = document.createElementNS('http://www.w3.org/1999/xhtml', 'frame');
const image = document.createElementNS('http://www.w3.org/2000/svg', 'image');
document.documentElement.appendChild(frame)
image.setAttribute('href', 'a.png')
for (let i = 0; i < 5; ++i) {
try { await timeout(image.decode()) } catch (e) {}
}
let w = window.open();
// Need to run SpecialPowers in the newly opened window to avoid
// .wrap throwing because of dead objects.
let csp = w.eval("SpecialPowers.wrap(document).cspJSON;");
ourOpener.postMessage(csp, "*");
w.close();
if (!location.search.includes("close")) {
window.close();
}
})
</script>
</head>
</html>
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