Update controllers.md (safari no content type) (#4598)
Update controllers.md (safari no content type) (#4598)


rafbgarcia/phoenix,phoenixframework/phoenix,optikfluffel/phoenix,0x00evil/phoenix,rafbgarcia/phoenix,nshafer/phoenix,optikfluffel/phoenix,phoenixframework/phoenix,optikfluffel/phoenix,0x00evil/phoenix,phoenixframework/phoenix,0x00evil/phoenix,rafbgarcia/phoenix,nshafer/phoenix,nshafer/phoenix