Description:

Uploaded an extension-less file, when trying to download it i'm getting an error.

Server Setup Information:

• Version of Rocket.Chat Server: latest (0.59.0)
• Operating System: docker on ubuntu 14
• Deployment Method(snap/docker/tar/etc): docker
• Number of Running Instances: 1
• DB Replicaset Oplog: Disabled
• Node Version: 4.8.4 - x64

Steps to Reproduce:

1. upload an extension-less file
2. try to download it

Expected behavior:

file to be downloaded

Actual behavior:

rocket is expecting a content-type

Relevant logs:

Error: value required in setHeader("Content-Type", value).
at ServerResponse.OutgoingMessage.setHeader (_http_outgoing.js:354:11)
at ServerResponse.res.setHeader (/app/bundle/programs/server/npm/node_modules/meteor/webapp/node_modules/connect/lib/patch.js:134:22)
at ServerResponse.res.setHeader (/app/bundle/programs/server/packages/rocketchat_cors.js:81:20)
at ServerResponse.setWriteHeadHeaders (/app/bundle/programs/server/npm/node_modules/meteor/webapp/node_modules/on-headers/index.js:82:19)
at ServerResponse.writeHead (/app/bundle/programs/server/npm/node_modules/meteor/webapp/node_modules/on-headers/index.js:41:36)
at readFromGridFS (/app/bundle/programs/server/packages/rocketchat_file-upload.js:1191:7)
at FileUploadClass.get (/app/bundle/programs/server/packages/rocketchat_file-upload.js:1273:10)
at Object.assign.get (/app/bundle/programs/server/packages/rocketchat_file-upload.js:482:17)
at Object.handle (/app/bundle/programs/server/packages/rocketchat_file-upload.js:784:22)
at next (/app/bundle/programs/server/npm/node_modules/meteor/webapp/node_modules/connect/lib/proto.js:174:15)
at Object.handle (/app/bundle/programs/server/packages/jalik_ufs.js:1231:13)
at next (/app/bundle/programs/server/npm/node_modules/meteor/webapp/node_modules/connect/lib/proto.js:174:15)
at middleware (/app/bundle/programs/server/packages/rocketchat_cas.js:233:4)
at /app/bundle/programs/server/packages/rocketchat_cas.js:260:3