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https://issues.apache.org/jira/browse/MYFACES-2811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12887388#action_12887388
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Werner Punz commented on MYFACES-2811:
--------------------------------------

Ok got it, primefaces uses its own partial lifecycle mechanism a request from 
primefaces looks like following:
j_id914123403_367c6b00_su...    j_id914123403_367c6b00_submit
javax.faces.ViewState   
KLbUCI2NVQHOAk/gg+lUKpzTubwEZ68OjNf/sSooRLAZEtdiHul6VRAS+OV+DCswXv1dgNQqUZxb 
mEHspI+kokh0MhBghr+nLHMTTKKA7/ldudnPxOlwnP7PqKNrlYGrEr+2iw==
primefacesPartialRequest        true
primefacesPartialUpdate testForm
testForm_SUBMIT 1

Which is not!!! a jsf 2 ppr request, he then renders his own response protocol 
by leveraging the standard html response writer

<?xml version="1.0" 
encoding="UTF-8"?><partialResponse><components><component><id>testForm</id>....
which is a primefaces only protocol and there our CDATA fixes did not kick in 
because they were only implemented on top of the html responsewriterImpl

I have to admit our impl is partially at fault here, because startCDATA is a 
valid jsf2 command on ResponseWriter level, and I only fixed the issue on 
ResponseWriterImpl level. We probably have to introduce the regexp fixup on 
responseWriter level as well. As it seems Mojarra has done the same mistake we 
did by fixing it only in PPRResponseWriter level.



> Partial Response still embedded CDATA possible
> ----------------------------------------------
>
>                 Key: MYFACES-2811
>                 URL: https://issues.apache.org/jira/browse/MYFACES-2811
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.0.1-SNAPSHOT
>            Reporter: Werner Punz
>
> We worked on this issue a while ago yet I got another error report in - Bruno 
> Aranda is reporting:
> Hi,
> I have a partial response that contains invalid syntax because CDATA
> sections are nested. For example, in my app this code is generated in
> the partial response:
> <?xml version="1.0"
> encoding="UTF-8"?><partialResponse><components><component><id>editorForm</id><output><![CDATA[<form
> id="editorForm" name="editorForm" method="post"
> action="/editor/curate/publication.jsf?conversationContext=2"
> enctype="application/x-www-form-urlencoded"><span
> id="growl"></span><script type="text/javascript">//<![CDATA[
> jQuery.gritter.add({title:'Publication saved',text:'AC:
> EBI-2637354',image:'/editor/primefaces_resource/2.0.3-SNAPSHOT/primefaces/growl/assets/info.png?conversationContext=2',sticky:false});
> //]]></script> 

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