| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> |
| </head> |
| <body> |
| <span id='requestButton'> |
| Make a request |
| </span> |
| <a id="link" target="_blank" href="empty.html">Link to empty.html</a> |
| |
| <p>Successes: |
| <div id="successes"> |
| </div> |
| |
| <p>Failures: |
| <div id="failures"> |
| </div> |
| <script type="text/javascript"> |
| var eventListener = function(evt) { |
| if( evt == 'success'){ |
| document.getElementById("successes").innerHTML = ++successes; |
| } else if( evt == 'failure') { |
| document.getElementById("failures").innerHTML = ++failures; |
| } |
| }; |
| |
| var s = document.getElementById('successes'); |
| var f = document.getElementById('failures'); |
| |
| s.addEventListener('click', function() { eventListener('success') }); |
| f.addEventListener('click', function() { eventListener('failure') }); |
| |
| var httpRequest; |
| document.getElementById('requestButton').addEventListener('click', repeatLoadPage); |
| |
| function makeRequest() { |
| httpRequest = new XMLHttpRequest(); |
| url = window.location.protocol + "//" + window.location.host + "/helloworld"; |
| httpRequest.onreadystatechange = alertContents; |
| httpRequest.open("GET", url); |
| httpRequest.send(); |
| } |
| |
| var successes = 0; |
| var failures = 0; |
| |
| function alertContents() { |
| if (httpRequest.readyState == 4) { |
| if (httpRequest.status == 200) { |
| document.getElementById("successes").click(); |
| successes++; |
| } else { |
| document.getElementById("failures").click(); |
| failures++; |
| } |
| } |
| } |
| |
| function repeatLoadPage() { |
| setInterval(makeRequest, 300); |
| } |
| </script> |
| </body> |
| </html> |
