GridFS file read error

I am getting below error , during the fire read or open upload file into browser .

I am using below meteor gridfs package to upload file. File uploaded working fine. but getting error on read.
jalik:ufs
jalik:ufs-gridfs

Error: value required in setHeader(“Content-Type”, value).
at ServerResponse.OutgoingMessage.setHeader (_http_outgoing.js:342:11)
at ServerResponse.res.setHeader (C:\Users\rajinder\AppData\Local.meteor\packages\webapp\1.3.12\npm\node_modules\connect\lib\patch.js:134:22)
at ServerResponse.setWriteHeadHeaders (C:\Users\rajinder\AppData\Local.meteor\packages\webapp\1.3.12\npm\node_modules\on-headers\index.js:82:19)
at ServerResponse.writeHead (C:\Users\rajinder\AppData\Local.meteor\packages\webapp\1.3.12\npm\node_modules\on-headers\index.js:41:36)
at meteor://:computer:app/packages/jalik:ufs/ufs-server.js:340:37
at Domain. (meteor://:computer:app/packages/jalik:ufs/ufs-server.js:236:81)
at Domain.run (domain.js:228:14)
at meteor://:computer:app/packages/jalik:ufs/ufs-server.js:234:15
at Object.handle (meteor://:computer:app/packages/jalik:ufs/ufs-server.js:188:39)
at next (C:\Users\rajinder\AppData\Local.meteor\packages\webapp\1.3.12\npm\node_modules\connect\lib\proto.js:174:15)