Redirect, block Requests; Modify, cancel request/response Headers.
This addon is written in ClojureScript, so lein is required.
In development period, optimizations is set to none, and mainly consists of two commands:
lein option, setup a figwheel server for option pagelein bg, setup a figwheel server for background script.
In release period, optimizations is set to advanced, and just run ./release.sh to get the finally optimized version in your home dir.