Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I had this same problem after upgrading from 0.9.1 to 0.9.3 (running Node 4.2.2), ended up resolving by removing that utf-8-validate module from npm-shrinkwrap.json.
utf-8-validate
npm-shrinkwrap.json
T