testing/web-platform/tests/fetch/corb/resources/subframe-that-posts-html-containing-blob-url-to-parent.html


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

<!DOCTYPE html>
<meta charset="utf-8">
<script>
fetch('html-correctly-labeled.html')
    .then(response => response.blob())
    .then(blob => {
        let msg = { blob_size: blob.size,
                    blob_type: blob.type,
                    blob_url: URL.createObjectURL(blob) };
        window.parent.postMessage(msg, '*');
    })
    .catch(error => {
        let msg = { error: error };
        window.parent.postMessage(msg, '*');
    });
</script>