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https://issues.apache.org/jira/browse/HADOOP-14908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16190051#comment-16190051
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Allen Wittenauer commented on HADOOP-14908:
-------------------------------------------
+1 committing this to trunk
> CrossOriginFilter should trigger regex on more input
> ----------------------------------------------------
>
> Key: HADOOP-14908
> URL: https://issues.apache.org/jira/browse/HADOOP-14908
> Project: Hadoop Common
> Issue Type: Improvement
> Components: common, security
> Affects Versions: 3.0.0-beta1
> Reporter: Allen Wittenauer
> Assignee: Johannes Alberti
> Attachments: HADOOP-14908-PR279.patch
>
>
> Currently, CrossOriginFilter.java limits regex matching only if there is an
> asterisk (\*) in the config.
> {code}
> if (allowedOrigin.contains("*")) {
> {code}
> This means that entries such as:
> {code}
> http?://foo.example.com
> https://[a-z][0-9].example.com
> {code}
> ... and other patterns that succinctly limit the input space need to either
> be fully expanded or dramatically have their space increased by using an
> asterisk in order to pass through the filter.
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