I am just making my way through the first badges.
I managed to get the first text messages both in the emulator as well as on the 1.9 MC Server running.
But for the functions you need to summon also creatures. This works perfectly on MC, but they do not appear in the emulator.
I tried it with both Chrome and Firefox browsers on my Mac with 10.12., but to no avail.
Do I need to set up anything in addition? Thanks for the help.