| <html> |
| <head> |
| <script src="../../../resources/js-test.js"></script> |
| </head> |
| <body onload="test()"> |
| <script> |
| window.jsTestIsAsync = true; |
| description("Test that CSS rules don't lose custom properties on GC when only reachable through child rules."); |
| |
| function createCSSStyleSheet() |
| { |
| style = document.createElement("style"); |
| document.head.appendChild(style); |
| shouldBeType("style.sheet", "CSSStyleSheet"); |
| var sheet = style.sheet; |
| document.head.removeChild(style); |
| shouldBeNull("style.sheet"); |
| return sheet; |
| } |
| |
| function test() |
| { |
| var sheet = createCSSStyleSheet(); |
| sheet.insertRule("@media all { div { color:black } }", 0); |
| rule = sheet.rules[0].cssRules[0]; |
| rule.parentRule.foo = "bar"; |
| sheet = null; |
| |
| gc(); |
| setTimeout(function() { |
| gc(); |
| shouldBe('rule.parentRule.foo', '"bar"'); |
| finishJSTest(); |
| }, 0); |
| } |
| </script> |
| <foo id="mystyle" style="display:none">.div { color: white; }</foo> |
| </body> |
| </html> |
