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https://issues.apache.org/jira/browse/WW-3737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473106#comment-13473106
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Lukasz Lenart commented on WW-3737:
-----------------------------------
Someone could base on that behaviour that's why I postponed it till 2.5
> Parsing of excludePattern breaks regex
> ---------------------------------------
>
> Key: WW-3737
> URL: https://issues.apache.org/jira/browse/WW-3737
> Project: Struts 2
> Issue Type: Bug
> Components: Dispatch Filter
> Reporter: Erlend Oftedal
> Fix For: 2.5
>
>
> See buildExcludedPatternsList() in
> http://svn.apache.org/repos/asf/struts/struts2/trunk/core/src/main/java/org/apache/struts2/dispatcher/ng/InitOperations.java
> It simply splits on commas, making it impossible to write regex like
> /products/[0-9]{1,10}.json as this will be split in two.
> Please supply a way to escape commas by sticking a \ in front or something
> like that.
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