Errors Http-server

[khs123]

When clone this repo này , i have a trouble when connect webserver. On Terminal display. util.puts: Use console.log instead HttpProxy Server running at http://localhost:8000/ But when i run from browser , not showing and display errors look like: Error: Must provide a proper URL as target at ProxyServer. (/Users/khanh/Workspace/Template/angularjs-Quizzler/tools/webserver/node_modules/http-proxy/lib/http-proxy/index.js:68:35) at Server.closure (/Users/khanh/Workspace/Template/angularjs-Quizzler/tools/webserver/node_modules/http-proxy/lib/http-proxy/index.js:125:43) at Server.emit (events.js:110:17) at HTTPParser.parserOnIncoming as onIncoming at HTTPParser.parserOnHeadersComplete (_http_common.js:111:23) at Socket.socketOnData (_http_server.js:343:22) at Socket.emit (events.js:107:17) at readableAddChunk (_stream_readable.js:163:16) at Socket.Readable.push (_stream_readable.js:126:10) at TCP.onread (net.js:529:20) I dont know why ? help me please