I switched from iTerm2 because at the time (possibly still), iTerm2 had a performance bug where large amounts of underlined text would cause the terminal to slow down noticeably. Wezterm works perfectly, and I appreciate the .lua configuration over iTerm2's mess of menus.
Does not appear to work under Firefox, getting a bunch of CORS-related errors (header ‘user-agent’ is not allowed according to header ‘Access-Control-Allow-Headers’ from CORS preflight response) on the /graphql endpoint.
Yes, that's an http connection to the Docker Engine api on localhost failing due to the same issue—the docker engine cam't negotiate with the Docker Hub to get the new image and is passing the error back through the local api to your updater process.