Curl widget in dashboard not working? Or is it me?

So, I’ve set up a “http in” node in Node Red that works great, I can curl it -

curl -i

from my EmonCMS Pi or from my desktop and the command arrives in Node Red -


But the Curl widget on the EmonCMS dashboard where I want to add a button to change modes on my car charger - set up as below, or with as the IP address and either GET or POST, does nothing.

Clearly I’m missing something here, I just don’t know what/where. Any ideas?
Maybe @RDCH106 can help?