[web-devel] [Yesod] What is ContentFile's second argument?

[Katsutoshi Itoh]

Hi

Now, I'm converting my yesod app 0.7 to 0.8

I'm facing to the code like this.

          return $ RepHtml $ ContentFile path

I looked up  ContentFile has 2 arguments, on 0.8.
the second argument of this is Maybe FilePart.
If I write this Nothing, what does it mean?

thanks.