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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webmessaging/with-ports/025.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>1 as ports</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
test(function() {
assert_throws_js(TypeError, function() {
postMessage('', '*', 1);
});
});
</script>