tor-browser

The Tor Browser
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HTMLLinkElement-disabled-002.html (1528B)

      1 <!doctype html>
      2 <title>&lt;link disabled&gt;, HTMLLinkElement.disabled and CSSStyleSheet.disabled interactions (alternate)</title>
      3 <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
      4 <link rel="author" title="Mozilla" href="https://mozilla.org">
      5 <link rel="help" href="https://html.spec.whatwg.org/#attr-link-disabled">
      6 <script src="/resources/testharness.js"></script>
      7 <script src="/resources/testharnessreport.js"></script>
      8 <link title="alt" rel="alternate stylesheet" disabled href="data:text/css,html { background: green }">
      9 <script>
     10 function assert_applies(applies) {
     11  (applies ? assert_equals : assert_not_equals)(getComputedStyle(document.documentElement).backgroundColor, "rgb(0, 128, 0)");
     12 }
     13 
     14 const link = document.querySelector("link[disabled]");
     15 
     16 async_test(function(t) {
     17  assert_true(link.disabled);
     18 
     19  link.onload = t.step_func_done(function() {
     20    assert_equals(document.styleSheets.length, 1);
     21    let sheet = document.styleSheets[0];
     22    assert_equals(sheet.ownerNode, link);
     23    assert_applies(true);
     24 
     25    link.disabled = true;
     26    assert_equals(sheet.ownerNode, null);
     27    assert_false(sheet.disabled);
     28    assert_applies(false);
     29    assert_true(link.hasAttribute("disabled"));
     30    assert_equals(document.styleSheets.length, 0);
     31  });
     32 
     33  link.disabled = false;
     34  assert_true(!link.hasAttribute("disabled"));
     35  assert_false(link.disabled);
     36 }, "HTMLLinkElement.disabled reflects the <link disabled> attribute, and behaves consistently, when the sheet is an alternate");
     37 </script>