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https://issues.apache.org/jira/browse/WICKET-2725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12830702#action_12830702
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Juergen Donnerstag commented on WICKET-2725:
--------------------------------------------
you may add components to the header the same way you add them to a page/panel.
<wicket:head>
<script wicket:id="myWhatever" ..>
</wicket:head>
add(new XYZ("myWhatever"))
> Component fails to write to Head section inside Panel
> -----------------------------------------------------
>
> Key: WICKET-2725
> URL: https://issues.apache.org/jira/browse/WICKET-2725
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.4.5
> Reporter: bernard
> Attachments: testcase.zip
>
>
> I use panels to enclose <head> and <body> so I can replace content of a page
> on this level.
> I do this to
> a) take advantage of the panel replacement feature that lets the URL
> unchanged (eliminates back button problems)
> b) use different heads, bodies, scripts and styles per panel
> c) make editing panel HTML requiring external scripts as easy as editing page
> HTML.
> When doing so, AJAX stops working with the following error:
> "You probably forgot to add a <body> or <header> tag to your markup since no
> Header Container was
> found but components were found which want to write to the <head> section.
> ... "
> I am really stuck with this because I have already converted quite a few
> pages to this pattern.
> The panels are not re-usable components. They are really more like pages that
> are replaced with the objective of having them all opened with the same URL.
> I think that this is a really simple use case and therefore I am thinking
> that there might be an alternative implementation achieving the same results.
> However I still think that this implementation should work.
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