preflight-cache-partitioning.sub.html

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<!doctype html>

<meta charset="utf-8">

<title>Helper page for testing preflight cache partitioning</title>

<iframe id="iframe" src="http://{{host}}:{{ports[http][0]}}/cors/resources/preflight-cache-partitioning-iframe.sub.html"></iframe>

<script>

window.onmessage = (e) => {

  switch (e.data.type || "") {

    case "pass":

    case "fail":

    case "loaded":

      opener.postMessage(e.data, "*");

      break;

    default:

      let iframe = document.getElementById("iframe");

      iframe.contentWindow.postMessage(e.data, "*");

      break;

};

</script>