I seem to be getting this (old?) error when showing/updating a sitemap page with charts:
[ERROR] [e.internal.WriterInterceptorExecutor] - MessageBodyWriter not found for media type=text/event-stream, type=class org.glassfish.jersey.media.sse.OutboundEvent, genericType=class org.glassfish.jersey.media.sse.OutboundEvent.
It correlated with an “offline” message shown.
am I the only one seeing those (using openHAB 2.53, Browser chrome)?