third_party/WebKit/LayoutTests/http/tests/misc/client-hints-accept.php

   1 <?php
   2     header("ACCEPT-CH: DPR, Width, Viewport-Width");
   3 ?>
   4 <!DOCTYPE html>
   5 <script src="../resources/testharness.js"></script>
   6 <script src="../resources/testharnessreport.js"></script>
   7 <body>
   8     <script>
   9         var t = async_test('Client-Hints sent when Accept-CH header is present');
  10         var unreached = function() {
  11             assert_unreached("Image should have loaded.");
  12         };
  13
  14         var loadRWImage = function() {
  15             var img = new Image();
  16             img.src = 'resources/image-checks-for-width.php';
  17             img.sizes = '500';
  18             img.onload = t.step_func(function(){ t.done(); });
  19             img.onerror = t.step_func(unreached);
  20             document.body.appendChild(img);
  21         };
  22         var loadViewportImage = function() {
  23             var img = new Image();
  24             img.src = 'resources/image-checks-for-viewport-width.php';
  25             img.onload = t.step_func(loadRWImage);
  26             img.onerror = t.step_func(unreached);
  27             document.body.appendChild(img);
  28         };
  29         t.step(function() {
  30             var img = new Image();
  31             img.src = 'resources/image-checks-for-dpr.php';
  32             img.onload = t.step_func(loadViewportImage);
  33             img.onerror = t.step_func(unreached);
  34             document.body.appendChild(img);
  35         });
  36     </script>
  37 </body>