file_storage_copied.html

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<!DOCTYPE HTML>

<html>

<!--

This page is opened in a new window by test_storage_copied.html.

We need to return the sessionStorage value for the item "test-item",

by way of postMessage.

-->

<head>

<body>Opened!</body>

<script>

  window.postMessage(window.sessionStorage.getItem("test-item"), "*");

</script>

</html>