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<!DOCTYPE html>
<meta charset="utf-8">
<title>iframe for xhr tests</title>
<script>
async function xhr(url, options) {
return new Promise((resolve, reject) => {
const xhr = new XMLHttpRequest();
const opts = options ? options : {};
xhr.onload = () => {
resolve(xhr);
};
xhr.onerror = () => {
reject('xhr failed');
};
xhr.open('GET', url);
if (opts.responseType) {
xhr.responseType = opts.responseType;
}
xhr.send();
});
}
</script>