Weird, now it doesn't work anymore when I checked.
I'm getting a 406 Not Acceptable error upon upload as a response.
It's a very rare response code, very hard to debug because server got what he wanted but not really happy with it.
Maybe they changed the type of photo to limited, or truncated maximum size of the photo.
I'll debug this as soon as my mom's iPhone is available in an hour. :P
You just work on multithreading for media please.