In browser's world that means all the juicy stuff is sent over HTTPS. All the juicy stuff is sent over HTTPS. Unfortunately, this request goes over HTTPS, so only Amazon can know your URLs. First file defines what HTTPS sites can be inspected. Poor man's transparent HTTPS->HTTP proxy. All captured HTTPS data will be in pwn.log file.
Source: http://blog.kotowicz.net/2013/07/jealous-of-prism-use-amazon-1-button.html