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path: root/testing/web-platform/tests/service-workers/service-worker/resources/about-blank-replacement-frame.py
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def main(request, response):
  if b'nested' in request.GET:
    return (
      [(b'Content-Type', b'text/html')],
      b'failed: nested frame was not intercepted by the service worker'
    )

  return ([(b'Content-Type', b'text/html')], b"""
<!doctype html>
<html>
<body>
<script>
function nestedLoaded() {
  parent.postMessage({ type: 'NESTED_LOADED' }, '*');
}
</script>
<iframe src="?nested=true" id="nested" onload="nestedLoaded()"></iframe>
<script>
// Helper routine to make it slightly easier for our parent to find
// the nested frame.
function nested() {
  return document.getElementById('nested').contentWindow;
}

// NOTE: Make sure not to touch the iframe directly here.  We want to
//       test the case where the initial about:blank document is not
//       directly accessed before load.
</script>
</body>
</html>
""")