web.xml
<!--
websocket
-->
<context-param>
<param-name>javax.faces.ENABLE_CDI_RESOLVER_CHAIN</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>javax.faces.ENABLE_WEBSOCKET_ENDPOINT</param-name>
<param-value>true</param-value>
</context-param>
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