I am using Tapestry 5.3.6. I have not overridden BaseURLSource or anything simmilar. I have not provided HOSTPORT or HOSTPORT_SECURE.
Looking at the code in BaseURLSourceImpl, maybe my problem is that http communication goes on port 8080, not 80 as expected (hardcoded in BaseURLSourceImpl). I will try to experiment more with the settings above and figure out how to test it on my local machine. Regards Martin