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https://issues.apache.org/jira/browse/WICKET-456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12495278
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Matej Knopp commented on WICKET-456:
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I'm -1 on this and if noone objects I'll close this as won't fix. We already
filter duplicate contribution for panels of the same class. If anyone needs to
filter contributions from component of different classes there is
IHeaderReponse for that.
> wicket:head contributions from panel markup should be parsed to remove
> duplicates
> ----------------------------------------------------------------------------------
>
> Key: WICKET-456
> URL: https://issues.apache.org/jira/browse/WICKET-456
> Project: Wicket
> Issue Type: Improvement
> Components: wicket
> Affects Versions: 1.3
> Reporter: Peter Thomas
> Priority: Minor
>
> When using wicket:head to contribute head entries, when multiple panels are
> used in a page, the HTML head section ends up with duplicate entries if some
> of the panels share common resources.
> Of course there is no problem if you use HeaderContributor in the code
> instead.
> Nabble discussion link:
> http://www.nabble.com/Duplicate-wicket%3Ahead-contributed-entries-with-multiple-panels-on-a-page-tf3548384.html
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