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https://issues.apache.org/jira/browse/TAP5-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ben Weidig resolved TAP5-2791.
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Fix Version/s: 5.9.0
Resolution: Fixed
> CssCompressor for CSS files produces wrong minification for url() function,
> at least with data URLs
> ---------------------------------------------------------------------------------------------------
>
> Key: TAP5-2791
> URL: https://issues.apache.org/jira/browse/TAP5-2791
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-webresources
> Affects Versions: 5.8.0, 5.8.7
> Reporter: Hendrik Noot
> Assignee: Ben Weidig
> Priority: Major
> Fix For: 5.9.0
>
>
> This problem is closely related to TAP5-2753 and caused by the optimisation
> (yuicompressor update) from TAP5-2708.
> The CssCompressor removes white spaces from url() functions inside CSS files.
> So for example if you use a SVG as an backround image something like
> 'urlheight="1em" viewBox="0 0 576 512"' becomes
> 'height="1em"viewBox="00576512"' which breaks the SVG.
> There is also an open issue for yuicompressor:
> [https://github.com/yui/yuicompressor/issues/344]
> The fix inside the CssCompressor is to disable white space removal for the
> url function, change:
> {code:java}
> css = preserveToken(css, "url", PRESERVE_TOKEN_URL, true, "TOKEN",
> preservedTokens); {code}
> to:
> {code:java}
> css = preserveToken(css, "url", PRESERVE_TOKEN_URL, false, "TOKEN",
> preservedTokens);
> {code}
> This works for me and I couldn't find any negative side effects.
> If needed I can provide a pull request.
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