axios doesn’t work with fakeweb

[macabeus]

Using axios version 0.16.0 and fakeweb version 1.1.0, fakeweb made axios raises an exception when access the URL, but the same URL works when using another lib, like prequest.

googleSpy = fakeweb.registerUri({uri: 'http://www.google.com/', body: 'Hello' })
// returns: { used: false, useCount: 0 }

prequest({url: 'http://www.google.com/' }).then(console.log)
// returns: Hello

axios.post('http://www.google.com/').catch(err => console.log(err))
/* returns:
TypeError [ERR_INVALID_ARG_TYPE]: The "list" argument must be one of type Array, Buffer, or Uint8Array
    at Function.concat (buffer.js:465:13)
    at EventEmitter.handleStreamEnd (/Users/macabeus/Desktop/pagarme-core/gateway/node_modules/axios/lib/adapters/http.js:180:37)
    at EventEmitter.emit (events.js:180:13)
    at EventEmitter.emit (domain.js:440:23)
    at EventEmitter.thisRequest.end (node_modules/node-fakeweb/src/lib/overrides.js:67:18)
    at RedirectableRequest.end (node_modules/follow-redirects/index.js:128:23)
    at dispatchHttpRequest (node_modules/axios/lib/adapters/http.js:223:11)
    at new Promise (<anonymous>)
    at httpAdapter (node_modules/axios/lib/adapters/http.js:19:10)
    at dispatchRequest (node_modules/axios/lib/core/dispatchRequest.js:52:10)
*/