Added caching headers
Added caching headers

Copy the caching headers from the proxied URL, or default to one day if
there are no caching headers

emnh/crossorigin.me,SplitBoxMe/GoogleDrive-CORS,BernieSumption/crossorigin.me,hydraflix/crossorigin.me,technoboy10/crossorigin.me,SplitBoxMe/OneDrive-CORS,djlandy/CorsProxy,hydraflix/crossorigin.me,SplitBoxMe/OneDrive-CORS,djlandy/CorsProxy,emnh/crossorigin.me,barthlund/crossorigin.me,technoboy10/crossorigin.me,PaquitoSoft/crossorigin.me,barthlund/crossorigin.me,PaquitoSoft/crossorigin.me,BernieSumption/crossorigin.me,SplitBoxMe/GoogleDrive-CORS