Bit difficult to test this - Imgur returns a webpage (hence the HTTP_OK) regardless of the URL e.g. [http://i.imgur.com/U6l0Dsafafgdgdfsgdb.jpg](http://i.imgur.com/U6l0Dsafafgdgdfsgdb.jpg).

Tried `URLConnection.guessContentTypeFromStream(InputStream)` but yields null.
`HttpUrlConnection.setFollowRedirects(false)` also makes no difference.

Deleting this test (as it's invalid).