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https://issues.apache.org/jira/browse/NIFI-3876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16008090#comment-16008090
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Scott Aslan commented on NIFI-3876:
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It seems as though a blank name is ok but a whitespace name is not.
> UI - UI hanging if using a blank name for a processor
> -----------------------------------------------------
>
> Key: NIFI-3876
> URL: https://issues.apache.org/jira/browse/NIFI-3876
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core UI
> Affects Versions: 1.2.0
> Environment: Firefox 53.0
> Reporter: Pierre Villard
> Assignee: Scott Aslan
> Priority: Minor
> Attachments: Screen Shot 2017-05-12 at 11.24.58 AM.png
>
>
> When setting a blank name to a processor, the UI will fail and refresh will
> hang (see screenshot). It's not the case with an empty name. Could be
> interesting to prevent blank/empty names for the components.
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