#486 Fix upload_prefix configuration retrieval (#487)

Author: MaSpeng

lib-es5/uploader.js

@@ -24,7 +24,7 @@ var urlLib = require('url');
 
 // eslint-disable-next-line import/order
 
-var _require2 = require("./config"),
+var _require2 = require("./config")(),
     upload_prefix = _require2.upload_prefix;
 
 var isSecure = !(upload_prefix && upload_prefix.slice(0, 5) === 'http:');

lib/uploader.js

@@ -5,7 +5,7 @@ const Writable = require("stream").Writable;
 const urlLib = require('url');
 
 // eslint-disable-next-line import/order
-const { upload_prefix } = require("./config");
+const { upload_prefix } = require("./config")();
 
 const isSecure = !(upload_prefix && upload_prefix.slice(0, 5) === 'http:');
 const https = isSecure ? require('https') : require('http');