README should state upfront that "application/octet-stream" is default for unknown extension

[ghost]

When I looked at the doco, one of the first things I thought was what happened if you put in an unknown file extension.

In this case, I noticed it returns "application/octet-stream".

It'll be good to put that upfront in the README because I'm sure this is one of the first things people think about.

What do you think?

BTW, thanks for such a useful package!

Chris

[tyler-johnson]

Honestly, I think it should default to null or undefined when it can't find the extension. When a "application/octet-stream" comes up, I don't actually know if it wan't found, it could actually be "application/octet-stream".

[broofa]

Setting mime.default_type = null will return null when a type is not found.

Updated README.md in v1.2.10 (published)

[stevenvachon]

Agreed, default_type should be undefined by default.