NodehttpOutgoingMessage.prototype.getHeaderNamesmethod OutgoingMessage.prototype.getHeaderNames#OutgoingMessage.prototype.getHeaderNames(): string[]Returns an array containing the unique names of the current outgoing headers. All names are lowercase. Return Type #string[]
method OutgoingMessage.prototype.getHeaderNames#OutgoingMessage.prototype.getHeaderNames(): string[]Returns an array containing the unique names of the current outgoing headers. All names are lowercase. Return Type #string[]