Yup, I have gotten the Chrome Workspace all up and running. Indeed, Prefixfree.js is screwing things up.
My setup: 1) Get a localhost (I am using WAMP to set it up) 2) Run your project through your localhost eg: localhost/project 3) F12, open chrome dev tools on it, the localhost/project 4) Configure Workspaces to map it back to your system drive