Revision 8c503e75150f239ea2884392d26740a284859d1c authored by Bobby Holley on 09 April 2018, 05:22:47 UTC, committed by moz-wptsync-bot on 09 April 2018, 05:38:06 UTC
dbaron asked for this in bug 507762, but it never happened. bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1451421 gecko-commit: 2189673fb8ea87ac07cd3cffe5a86cbdf497865d gecko-integration-branch: central gecko-reviewers: xidorn
1 parent 99e1ae2
Channel_postMessage_Blob.htm
<!DOCTYPE html>
<html>
<head>
<title> postMessage() with a Blob </title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id=log></div>
<script>
var TARGET = null;
var SOURCE = null;
var description = "Messages can contain Blobs.";
var t = async_test("Test Description: " + description);
var channel = new MessageChannel();
SOURCE = channel.port1;
TARGET = channel.port2;
TARGET.start();
TARGET.addEventListener("message", t.step_func(TestMessageEvent), true);
(function() {
SOURCE.postMessage({blob: new Blob(['foo', 'bar'])});
})();
// TODO(https://github.com/w3c/web-platform-tests/issues/7899): Change to
// some sort of cross-browser GC trigger.
if (self.gc) self.gc();
function TestMessageEvent(evt)
{
assert_true('blob' in evt.data);
assert_true(evt.data.blob instanceof Blob);
assert_equals(evt.data.blob.size, 6);
const reader = new FileReader();
reader.onerror = t.unreached_func('Reading blob failed');
reader.onload = t.step_func(() => {
assert_equals(reader.result, 'foobar');
t.done();
});
reader.readAsText(evt.data.blob);
}
</script>
</body>
</html>
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