> "application/x-gzip",

> "application/x-bzip2",

> "application/x-gzip",


"x-gzip" is duplicated.

Also, I just observed that Tor Browser (Firefox ESR38, currently) sent "application/gzip" for a ".gz" file and "application/x-bzip" (no "2") for a ".bz2" file. Maybe add those?