In http-proxy, "once" types was added to be the same as "on". (#50637)
In http-proxy, "once" types was added to be the same as "on". (#50637)

Co-authored-by: Guhyeon Jeon <bb54fa6dc21c70cf429383938f15150dca946298@gmail.com>
georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped