Crash on invalid urls

[ThauEx]

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: Invalid URI "test"
    at Request.init (node_modules/request/request.js:291:31)
    at new Request (node_modules/request/request.js:94:8)
    at request (node_modules/request/index.js:48:10)
    at downloadFile (index.js:51:9)
    at index.js:63:13
    at Object.cb [as oncomplete] (fs.js:168:19)