Last time I did work on a private app, I was able to start the zat server with the --port 4568 option, and then run it within Zendesk by appending ?zat=4568 to the URL. This was probably two weeks ago.
Today I can't get the zat=4568 portion to work. zat=true does, so I can continue to work, for now, but I often have several zat things going at once, so I need to be able to utilize the port option.
It was clear that zat=4568 was still trying to load app assets from https://xxxxxx.apps.zdusercontent.com/... As soon as I changed it to zat=true, I was loading assets from http://localhost:4567/... I checked zat=4567, and that behaved like zat=4568.
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