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Test Info:

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta http-equiv="Content-Security-Policy" content="img-src 'none'">
<body>
<script>
function wait_for_error_from_window(w, test) {
window.addEventListener('message', test.step_func(e => {
if (e.source != w)
return;
assert_equals(e.data, "error");
w.close();
test.done();
}));
}
async_test(t => {
var w = window.open();
var img = document.createElement('img');
img.onerror = t.step_func_done(_ => w.close());
img.onload = t.unreached_func();
img.src = "/images/red-16x16.png";
w.document.body.appendChild(img);
}, "window.open() inherits policy.");
async_test(t => {
var w = window.open();
wait_for_error_from_window(w, t);
w.document.write(`
<img src='/images/red-16x16.png'
onload='window.opener.postMessage("load", "*");'
onerror='window.opener.postMessage("error", "*");'
>
`);
}, "`document.write` into `window.open()` inherits policy.");
async_test(t => {
var b = new Blob(
[`
<img src='${window.origin}/images/red-16x16.png'
onload='window.opener.postMessage("load", "*");'
onerror='window.opener.postMessage("error", "*");'
>
`], {type:"text/html"});
wait_for_error_from_window(window.open(URL.createObjectURL(b)), t);
}, "window.open('blob:...') inherits policy.");
// Navigation to top-level `data:` is blocked.
async_test(t => {
var url =
`javascript:"<img src='${window.origin}/images/red-16x16.png'
onload='window.opener.postMessage(\\"load\\", \\"*\\");'
onerror='window.opener.postMessage(\\"error\\", \\"*\\");'
>"`;
wait_for_error_from_window(window.open(url), t);
}, "window.open('javascript:...') inherits policy.");
</script>