From 96f090617ae1b69d3c9718c29eedb99e7ded4523 Mon Sep 17 00:00:00 2001
From: Tahmid Hasan <tahmid@uber.com>
Date: Wed, 17 Apr 2019 15:02:09 -0700
Subject: [PATCH] [Zanzibar] Fix checkHeader parsing to check presence, not
 emptiness

---
 runtime/server_http_request.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/runtime/server_http_request.go b/runtime/server_http_request.go
index 308487a11..4a7fd4d2e 100644
--- a/runtime/server_http_request.go
+++ b/runtime/server_http_request.go
@@ -168,8 +168,8 @@ func (req *ServerHTTPRequest) start() {
 // CheckHeaders verifies that request contains required headers.
 func (req *ServerHTTPRequest) CheckHeaders(headers []string) bool {
 	for _, headerName := range headers {
-		headerValue := req.httpRequest.Header.Get(headerName)
-		if headerValue == "" {
+		_, ok := req.Header.Get(headerName)
+		if !ok {
 			req.logger.Warn("Got request without mandatory header",
 				zap.String("headerName", headerName),
 			)