third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cache-control-request.html

   1 <!doctype html>
   2 <html>
   3 <head>
   4 <script src="/js-test-resources/js-test.js"></script>
   5 </head>
   6 <body>
   7 <script>
   8
   9 window.jsTestIsAsync = true;
  10 description('Tests that XHR respects "Cache-Control" header.');
  11
  12 function makeXHR(url, headers)
  13 {
  14     return new Promise(function(resolve, reject) {
  15         var xhr = new XMLHttpRequest();
  16         xhr.open('GET', url);
  17         for (var i = 0; i < headers.length; ++i) {
  18             xhr.setRequestHeader(headers[i].name, headers[i].value);
  19         }
  20         xhr.onreadystatechange = function() {
  21             if (xhr.readyState === xhr.DONE) {
  22                 if (xhr.status === 200) {
  23                     resolve(xhr.responseText);
  24                 } else {
  25                     reject(xhr.status);
  26                 }
  27             }
  28         }
  29         xhr.onerror = reject;
  30         xhr.send();
  31     });
  32 }
  33
  34 var withCacheControl = 'resources/echo-random.php';
  35 var cacheControl = [{name: 'Cache-Control', value: 'no-cache'}];
  36 Promise.all([makeXHR(withCacheControl, cacheControl), makeXHR(withCacheControl, cacheControl)]).then(function(res1, res2) {
  37     if (res1 === res2) {
  38         // This is a bit flaky, because two different requests can accidentaly
  39         // result in the same response.
  40         testFailed("MemoryCache seems to be used.");
  41     } else {
  42         testPassed("MemoryCache is not used.");
  43     }
  44     finishJSTest();
  45 }, function() {
  46     testFailed('rejected');
  47     finishJSTest();
  48 });
  49 </script>
  50 </body>
  51 </html>