This is a minor issue but thought it might be worth mentioning. After an hour of fiddling around, I finally got the GA plugin to report user data on my GitBook, which uses a custom domain. I tried several different settings, and even manually pasted the tracking code into the README.md file. Not sure what caused it to start working, but it finally did.
Oddly, the GA Admin > Property > Tracking Code status page still says "Tracking Not Installed," even though I am receiving GA data. See screenshot. Is this an issue with the GA plugin -- or not?
