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https://issues.apache.org/jira/browse/TAP5-2567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15780096#comment-15780096
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Jochen Kemnade commented on TAP5-2567:
--------------------------------------
Ideally, CSSURLRewriter should not try to rewrite URLs in comments.
> CSSURLRewriter throws RuntimeException if asset not found, instead evaluating
> strictCssUrlRewriting
> ---------------------------------------------------------------------------------------------------
>
> Key: TAP5-2567
> URL: https://issues.apache.org/jira/browse/TAP5-2567
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.4.1
> Reporter: Robert Hannebauer
> Attachments: CSSURLRewriter-TAP5-2567.patch
>
>
> If the css header comment part contains a pattern like 'url(file_not_found)'
> the procedure AssetSource.getAsset throws an RuntimeException and prevents
> further processing, especially testing for null and evaluating
> StrictCSSURLRewriting.
> Caused by: java.lang.RuntimeException: Unable to locate asset
> 'webjars:META-INF/resources/webjars/jquery-ui/1.12.1/%22images%2Fui-icons_555555_256x240.png%22'
> (the file does not exist).
> at
> org.apache.tapestry5.internal.services.AssetSourceImpl.getLocalizedAssetFromResource(AssetSourceImpl.java:390)
> at
> org.apache.tapestry5.internal.services.AssetSourceImpl.getAssetInLocale(AssetSourceImpl.java:305)
> at
> org.apache.tapestry5.internal.services.AssetSourceImpl.getAsset(AssetSourceImpl.java:131)
> at $AssetSource_25dc8e7415b4a.getAsset(Unknown Source)
> at
> org.apache.tapestry5.internal.services.assets.CSSURLRewriter.replaceURLs(CSSURLRewriter.java:177)
> at
> org.apache.tapestry5.internal.services.assets.CSSURLRewriter.access$100(CSSURLRewriter.java:46)
> at
> org.apache.tapestry5.internal.services.assets.CSSURLRewriter$1.perform(CSSURLRewriter.java:109)
> at
> org.apache.tapestry5.internal.services.assets.CSSURLRewriter$1.perform(CSSURLRewriter.java:104)
> at
> org.apache.tapestry5.ioc.internal.OperationTrackerImpl.perform(OperationTrackerImpl.java:110)
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