In order to get the error handling and the provided error pages working, it is required to specify the provided CustomExceptionHandlerFactory in faces-config.xml.
If another exception handler like PrimeExceptionHandlerFactory or FullAjaxExceptionHandlerFactory is used, the error handling does not work.

Additionally exception filters like e.g. org.omnifaces.filter.FacesExceptionFilter configu

http://docs.spring.io/spring-framework/docs/5.0.0.BUILD-SNAPSHOT/spring-framework-reference/html/web-reactive.html#web-reactive-websocket-support

WebFlux includes reactive WebSocket client and server support. Both client and server are supported on the Java WebSocket API (JSR-356), Jetty, Undertow, Reactor Netty, and RxNetty.

On the server side, declare a WebSocketHandlerAdapter and then sim

main layout style names have strange convention; why not use the toplevel main-layout name in the styles instead?