layout/style/test/test_overscroll_behavior_pref.html

   1 <!doctype html>
   2 <html>
   3   <head>
   4     <meta http-equiv="content-type" content="text/html; charset=utf-8">
   5     <title>Test pref for overscroll-behavior property</title>
   6     <script src="/tests/SimpleTest/SimpleTest.js"></script>
   7   </head>
   8 <script class="testbody" type="text/javascript">
   9 function runTest() {
  10   let css = "div { overscroll-behavior: auto; }";
  11   let style = document.createElement('style');
  12   style.appendChild(document.createTextNode(css));
  13   document.head.appendChild(style);
  14
  15   is(document.styleSheets[0].cssRules[0].style.length,
  16      0,
  17      "overscroll-behavior shouldn't be parsed if the pref is off");
  18   SimpleTest.finish();
  19 }
  20 SpecialPowers.pushPrefEnv({ set: [["layout.css.overscroll-behavior.enabled", false]] },
  21                           runTest);
  22 SimpleTest.waitForExplicitFinish();
  23 </script>
  24 </html>