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Editorial Team
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Asked: 2026-06-12T04:29:10+00:00

<ui:define name=description rendered=false> <meta name=description content=do not render /> </ui:define> i’m using this code

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<ui:define name="description" rendered="false">
    <meta name="description" content="do not render" />
</ui:define>

i’m using this code in my xhtml page, when i run the app, meta description is still rendering. i want to use meta description tag depending on some conditions. master layout:

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:h="http://java.sun.com/jsf/html">
    <h:head>
        <ui:insert name="description" />
    </h:head>
    ...........
</html>

web page:

<ui:composition xmlns="http://www.w3.org/1999/xhtml"                    
                xmlns:ui="http://java.sun.com/jsf/facelets"
                xmlns:h="http://java.sun.com/jsf/html"
                xmlns:f="http://java.sun.com/jsf/core"
                xmlns:p="http://primefaces.org/ui"
                template="/templates/masterLayout.xhtml">

    <ui:define name="description" rendered="false">
        <meta name="description" content="do not render" />
    </ui:define>
...........
</ui:composition>
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1 Answer

  1. Editorial Team

    The <ui:define> is a taghandler which runs during view build time, not an UIComponent which runs during view render time. It does therefore not support the rendered attribute. Any unsupported attribute is just plain ignored.

    Use <ui:fragment> instead.

    <ui:define name="description">
    <ui:fragment rendered="false">
        <meta name="description" content="do not render" />
    </ui:fragment>
</ui:define>
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