net/http.transportRequest.extra (field)

5 uses

	net/http (current package)
		transport.go#L465: 	extra     Header                 // extra headers to write, or nil
		transport.go#L474: 	if tr.extra == nil {
		transport.go#L475: 		tr.extra = make(Header)
		transport.go#L477: 	return tr.extra
		transport.go#L2424: 			err := wr.req.Request.write(pc.bw, pc.isProxy, wr.req.extra, pc.waitForContinue(wr.continueCh))