[jira] Updated: (TRINIDAD-205) Need to avoid IE's number of CSS selectors limitation

["Simon Lessard (JIRA)" <de...@myfaces.apache.org>]

     [ https://issues.apache.org/jira/browse/TRINIDAD-205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Simon Lessard updated TRINIDAD-205:
-----------------------------------

    Status: Patch Available  (was: Open)

> Need to avoid IE's number of CSS selectors limitation
> -----------------------------------------------------
>
>                 Key: TRINIDAD-205
>                 URL: https://issues.apache.org/jira/browse/TRINIDAD-205
>             Project: MyFaces Trinidad
>          Issue Type: Bug
>    Affects Versions: 1.0.1-incubating-core-SNAPSHOT
>            Reporter: Jeanne Waldman
>            Assignee: Simon Lessard
>         Attachments: TRINIDAD-205.patch
>
>
> it turns out that IE has a limit to the size of a CSS file. It's not the actual size of the file, but rather it is the
> # of CSS selectors. I did a test and found out that the limit is 4095 CSS selectors.
> Firefox doesn't appear to have a limit.
> As you may know, the CSS file we generate contains both compressed and uncompressed styles, like this:
> .af_inputText_content, .x01 {background-color: blue}
> Our renderers render a shortened styleclass, unless
> the DISABLE_CONTENT_COMPRESSION flag is set to true in web.xml, then it renders the long styleclass.
> <input class="x01...>
> Ok, that's the background.
> *The problem* is that because we have a lot of custom components that we've built on top of Trinidad, and our customers
> have built custom components, etc, and these all have skinning,
> we have bumped up against the 4095 selector limit in IE. All selectors after the 4095th one are ignored.
> *A quick fix*, and probably a good one for a long time, is to render the styles in compressed mode when compression is on,
> or in uncompressed mode when compression if off. That will reduce our style selectors by 1/2, and will help performance to boot. :)
> I can also add a warning if we go past 4095 selectors for IE.
> Another solution is to break up the file into multiple files when I've reached the limit in one file, and include
> all the css files into the rendered page. I can do this in addition to the quick fix when I have more time.

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