no-preflight-received.html - mozsearch

mozilla-central/testing/web-platform/tests/fetch/private-network-access/resources/no-preflight-received.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>No preflight received</title>

<script>

  if (window.opener) window.opener.postMessage("no preflight received", "*");

</script>