third_party/web_platform_tests/websockets/constructor/019.html

<!doctype html>
<title>WebSockets: uppercase 'WS:'</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=../constants.js?pipe=sub></script>
<div id=log></div>
<script>
async_test(function(t) {
  var scheme = SCHEME_DOMAIN_PORT.split('://')[0];
  var domain = SCHEME_DOMAIN_PORT.split('://')[1];
  var ws = new WebSocket(scheme.toUpperCase()+'://'+domain+'/echo');
  ws.onopen = t.step_func(function(e) {
    ws.close();
    t.done();
  })
  ws.onclose = ws.onerror = ws.onmessage = t.step_func(function() {assert_unreached()});
});
</script>