问题描述
以下是代码:
- http://jsfiddle.net/salman/2hyYg/
- http://jsfiddle.net/salman/2hyYg/show/
您会注意到警报(document.styleSheets [x] .cssRules.length)
失败并显示安全异常。此解决方案的任何解决方法。我问,因为有几个CSS延迟加载类,使用此功能来检测是否加载CSS文档。
You'll notice the alert(document.styleSheets[x].cssRules.length)
fails with a "security exception". Any workaround for this. I am asking because there are a couple of "CSS lazy loading" classes out there that use this feature to detect if the CSS document is loaded.
另外:安全异常是否是正确的行为/是否符合标准?
Also: is the security exception a correct behavior/does it conform to standards?
推荐答案
当尝试读取从其他域或服务器加载的样式表或尝试读取@import规则时,您可能会遇到此错误。
You can get that error when trying to read a stylesheet loaded from a different domain or server, or trying to read an @import rule.
你的目的,只需检查document.styleSheets.length。
For your purpose, just check the document.styleSheets.length .
这篇关于Firefox无法枚举document.styleSheets []。cssRules []的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!