Set a default MIME type in metadata?

[ehuggett]

I'm not aware of any problems this is causing (noticed by chance), but if I upload a file that does not have an extension then the "type" field in the (encrypted) metadata is empty.

Server version: 5211339
Browser: Firefox 52.4.0 (64-bit) on Debian

send/app/fileSender.js

Lines 195 to 197 in 5211339

	iv: arrayToB64(this.iv),
	name: this.file.name,
	type: this.file.type

I added || 'application/octet-stream' to L197 in ehuggett@58555a6, and when uploading files with names that do not have an extension this "default" MIME type was used instead

[johngruen]

@g-k do you have any thoughts on this? Would adding a default type cause any problems here?

[g-k]

@johngruen I can't think of any problems this would cause. Apache and Nginx default to application/octet-stream so that's a good choice.