macOS: Open Chrome without web security

Make sure you’ve quit all Chrome windows. You can right-click on Chrome from the Dock and select Quit or you can hit Cmd + q whilst Chrome is open. Then run the below from your terminal:

open -n -a Google\ Chrome --args --disable-web-security --user-data-dir="/tmp"

Useful if you want to avoid CORS errors during development.

P.S. If you’re dealing with CORS issues, my sympathies.