Updated missing url https://cdn.rawgit.com/mochajs/mocha/2.2.5/mocha.js to https://cdn.jsdelivr.net/gh/mochajs/mocha/2.2.5/mocha.js
Modified http://chaijs.com/chai.js to a secure url
https://cdn.rawgit.com/mochajs/mocha/2.2.5/mocha.js
https://chaijs.com/chai.js