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https://issues.apache.org/jira/browse/WICKET-3960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13084137#comment-13084137
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Sylvain Vieujot commented on WICKET-3960:
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This is right if you have the all components created in the BasePage.
But this prevents extending the BasePage.
Here in the HomeWithWebMarkupContainerPage how can you add a component as you
have no reference to the htmlTag.
> Setting a wicket:id on the page' html tag generates a validateHeaders warning.
> ------------------------------------------------------------------------------
>
> Key: WICKET-3960
> URL: https://issues.apache.org/jira/browse/WICKET-3960
> Project: Wicket
> Issue Type: Bug
> Affects Versions: 1.5-RC5.1
> Reporter: Sylvain Vieujot
> Assignee: Martin Grigorov
> Priority: Minor
> Attachments: quickstart.zip
>
>
> To be able to set the html lang and dir attributes, I set a wicket:id on the
> html tag and instantiate a new WebMarkupContainer( "html" ) as explained here
> :
> http://apache-wicket.1842946.n4.nabble.com/set-attributes-of-HTML-tag-of-page-td1919239.html
> But this generates the following warning :
> Aug 12, 2011 12:51:24 AM org.apache.wicket.markup.html.WebPage validateHeaders
> SEVERE:
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Aug 12, 2011 12:51:24 AM org.apache.wicket.markup.html.WebPage validateHeaders
> SEVERE: You probably forgot to add a <body> or <head> tag to your markup
> since no Header Container was
> found but components were found which want to write to the <head> section.
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