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https://issues.apache.org/jira/browse/WICKET-4995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13734670#comment-13734670
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Sven Meier commented on WICKET-4995:
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WICKET-5309 showed that the url of a page can indeed change after being
rendered, when stateful components are added to an otherwise stateless page
during rendering (e.g. by repeaters).
Since CryptoMapper changes a url's segments for stateful pages, the page will
be re-rendered. To prevent this, call #setStatelessHint(false) on your page.
> Using CryptoMapper causes page to render twice
> ----------------------------------------------
>
> Key: WICKET-4995
> URL: https://issues.apache.org/jira/browse/WICKET-4995
> Project: Wicket
> Issue Type: Bug
> Reporter: Jukka Siivonen
> Assignee: Sven Meier
> Fix For: 6.7.0
>
>
> Using Wicket 1.5.9 and CryptoMapper causes our Wicket pages to be rendered
> twice. I was investigating a problem where a DAO query was executed two times
> when navigating to a single page.
> In debug call stack I found out that first render is made at
> WebPageRenderer.respond(RequestCycle) line: 246
> and second at WebPageRenderer.respond(RequestCycle) line: 263
> Removing CryptoMapper from our app configuration fixes the problem.
> It is also possible we are doing something wrong so any help is appreciated.
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