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https://issues.apache.org/jira/browse/MYFACES-2931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916039#action_12916039
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Christian Kaltepoth commented on MYFACES-2931:
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Hey Leonardo!
I just had a look at MYFACES-2925 and the JSF 2.0 spec. I think you are right.
<ui:decorate> is the way to go in a scenario like this.
In my opinion the name of the tags are a bit misleading. I think most people
will rather use <ui:include> if they want to "include" something in the page
and they will expect <ui:insert> to work like in the main template.
<ui:decorate> is more or less a "include with templating" that should be used
in these cases.
Nevertheless I have a bit of a bad feeling when MyFaces changes this behavior
from previous version (and what Mojarra is doing) as it will possibly break
existing applications.
> Regression: Template areas get lost when using <ui:include>
> ------------------------------------------------------------
>
> Key: MYFACES-2931
> URL: https://issues.apache.org/jira/browse/MYFACES-2931
> Project: MyFaces Core
> Issue Type: Bug
> Components: General
> Affects Versions: 2.0.2
> Reporter: Christian Kaltepoth
>
> Template areas specified with <ui:define> are not visible in files that the
> template includes with <ui:include>.
> See the following example.
> The template:
> http://github.com/chkal/myfaces-tests/blob/vdl-insert-bug/src/main/webapp/template.xhtml
> The file included by the template:
> http://github.com/chkal/myfaces-tests/blob/vdl-insert-bug/src/main/webapp/header.xhtml
> The page using the template:
> http://github.com/chkal/myfaces-tests/blob/vdl-insert-bug/src/main/webapp/page.xhtml
> MyFaces 2.0.2 will show "Wrong Title" in the title div, which is the default
> value of the <ui:insert>. MyFaces 2.0.1 and Mojarra will instead display
> "Correct Title", which is the value definied in page.xhtml via <ui:define>.
> You can download an example application demonstrating this issue here:
> http://github.com/chkal/myfaces-tests/archives/vdl-insert-bug
> Start the app with:
> mvn jetty:run
> The page is then available here:
> http://localhost:9090/
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