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+<!doctype html>
+<title>loop in array in structured clone</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id=log></div>
+<script>
+async_test(function() {
+ var x = [];
+ x[0] = x;
+ postMessage(x, '*');
+ onmessage = this.step_func(function(e) {
+ assert_equals(e.data, e.data[0]);
+ this.done();
+ });
+});
+</script>