src/tests/cefclient/resources/binding.html

<html>
<head>
<title>Binding Test</title>
<script language="JavaScript">

function setup() {
  if (location.hostname == 'tests' || location.hostname == 'localhost')
    return;

  alert('This page can only be run from tests or localhost.');

  // Disable all elements.
  var elements = document.getElementById("form").elements;
  for (var i = 0, element; element = elements[i++]; ) {
    element.disabled = true;
  }
}

// Send a query to the browser process.
function sendMessage() {
  // Results in a call to the OnQuery method in binding_test.cc
  window.cefQuery({
    request: 'BindingTest:' + document.getElementById("message").value,
    onSuccess: function(response) {
      document.getElementById('result').value = 'Response: '+response;
    },
    onFailure: function(error_code, error_message) {}
  });
}
</script>

</head>
<body bgcolor="white" onload="setup()">
<form id="form">
Message: <input type="text" id="message" value="My Message">
<br/><input type="button" onclick="sendMessage();" value="Send Message">
<br/>You should see the reverse of your message below:
<br/><textarea rows="10" cols="40" id="result"></textarea>
</form>
</body>
</html>