[jira] [Commented] (TRINIDAD-2563) Trinidad with MyFaces leads to empty ajax-response when render="@all" is used

["Thomas Andraschko (JIRA)" <de...@myfaces.apache.org>]

    [ https://issues.apache.org/jira/browse/TRINIDAD-2563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16400349#comment-16400349 ] 

Thomas Andraschko commented on TRINIDAD-2563:
---------------------------------------------

AFAIK we currently don't have any active developer working on Trinidad.
So the only chance may be a PR here: [https://github.com/apache/myfaces-trinidad/]

> Trinidad with MyFaces leads to empty ajax-response when render="@all" is used
> -----------------------------------------------------------------------------
>
>                 Key: TRINIDAD-2563
>                 URL: https://issues.apache.org/jira/browse/TRINIDAD-2563
>             Project: MyFaces Trinidad
>          Issue Type: Bug
>    Affects Versions: 2.2.1-core
>            Reporter: Matthias Füssel
>            Priority: Major
>
> Trindidad pvovides its own XmlHttpServletResponse for ajax requests. This response puts Tinidad's XmlOutput into its ResponseWriter chain which causes everything written before a "<?xml version="1.0" ?>" header to be thrown away. I have no idea why.
> Trinidad's PartialViewContextImpl uses two different writer chains:
>  * for "real" partial renderings, it uses its own PPResponseWriter -> XmlResponseWriter -> ... . This combination creates a "<?xml version="1.0" ?>" header at the begin of the output, so everything works as expected.
>  * for "render all" requests, it uses a standard PartialResponseWriter from the JSF API. The PartialResponseWriter from MyFaces doesn't create any xml header. So everything "written" will be ignored and the request returns a completely empty response which causes a javascript error on the client.
> Options:
>  * remove XmlOutput from XmlHttpServletResponse's writer chain or
>  * use Trinidad's writer chain also for "render all" requests, as there is no guarantee that PartialResponseWriter will use an xml header
>  



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