| <!doctype html> |
| <meta charset="utf-8"> |
| <title>CSSOM: getComputedStyle gets invalidated for display: none elements (rules)</title> |
| <link rel="help" href="https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle"> |
| <link rel="help" href="https://bugs.webkit.org/show_bug.cgi?id=186882"> |
| <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <style> |
| #undisplayed { |
| display: none; |
| color: red; |
| } |
| .sibling + #undisplayed { |
| color: green; |
| } |
| |
| .sibling + #undisplayed > div { |
| color: yellow; |
| } |
| </style> |
| <div id="helper"></div> |
| <div id="undisplayed"><div id="child"></div></div> |
| <script> |
| test(function() { |
| let undisplayed_style = getComputedStyle(undisplayed); |
| let undisplayed_child_style = getComputedStyle(child); |
| assert_equals(undisplayed_style.color, "rgb(255, 0, 0)"); |
| assert_equals(undisplayed_child_style.color, "rgb(255, 0, 0)"); |
| helper.classList.add("sibling"); |
| assert_equals(undisplayed_style.color, "rgb(0, 128, 0)"); |
| assert_equals(undisplayed_child_style.color, "rgb(255, 255, 0)"); |
| }, "getComputedStyle gets invalidated in display: none subtrees due to rule matching changes"); |
| </script> |
