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<!DOCTYPE html>
<meta charset=utf-8>
<script>
const channel = new BroadcastChannel('echochannel');
channel.onmessage = e => channel.postMessage(e.data);
</script>
<div id='workersrc' style='display:none'>
onmessage = e => {
const external_blob = e.data.blob;
const external_blob_url = e.data.url;
test(t => {
assert_equals('null', self.location.origin);
}, 'Worker has an opaque origin.');
async_test(t => {
const r = new FileReader();
r.onloadend = t.step_func_done(e => assert_equals(r.result, 'from worker'));
r.readAsText(new Blob(['from worker']));
}, 'Worker can read its own blobs.');
async_test(t => {
const r = new FileReader();
r.onloadend = t.step_func_done(e => assert_equals(r.result, 'from page'));
r.readAsText(external_blob);
}, 'Worker can read its owners blobs.');
async_test(t => {
const request = new XMLHttpRequest();
request.open('GET', external_blob_url);
request.onreadystatechange = t.step_func(() => {
if (request.readyState == 4) {
assert_equals(request.responseText, 'from page');
t.done();
}
});
request.send();
}, 'Worker can XHR fetch a blob.');
promise_test(t =>
fetch(external_blob_url).then(r => r.text()).then(text => assert_equals(text, 'from page'))
, 'Worker can fetch a blob.');
async_test(t => {
const channel = new BroadcastChannel('echochannel');
channel.onmessage = t.step_func_done(e => assert_equals('ping', e.data));
channel.postMessage('ping');
}, 'Worker can access BroadcastChannel');
done();
};
</div>
<script>
// Create a worker with a blob URL to get a same opaque origin worker.
const b = new Blob([document.getElementById('workersrc').textContent]);
const url = URL.createObjectURL(b);
const worker = new Worker(url);
// Pass back any messages from the worker to our parent to collect test results.
worker.onmessage = e => {
parent.postMessage(e.data, '*');
};
// Send test data to the worker.
const b2 = new Blob(['from page']);
const url2 = URL.createObjectURL(b2);
worker.postMessage({url: url2, blob: b2});
</script>