export const restrictedHeaderPrefixes = [ 'i-twilio-' , 'i-t-' , 'ot-' , 'x-amz' , 'x-forwarded-' , 'x-accel-' , ] ; export const restrictedHeaderExactMatches = [ 'via' , 'referer' , 'transfer-encoding' , 'proxy-authorization' , 'proxy-authenticate' , 'x-real-ip' , 'connection' , 'proxy-connection' , 'expect' , 'trailer' , 'upgrade' , ] ;