Allow uncapitalized authorization header

auth/api_key.go

@@ -22,7 +22,10 @@ func GenerateNewApiKey() string {
 
 // GetApiKeyFromHeaders checks if a bearer token is passed as part of the Authorization header and returns that key
 func GetApiKeyFromHeaders(headers map[string]string) string {
-	key := headers["Authorization"]
+	key := headers["authorization"]
+	if key == "" {
+		key = headers["Authorization"]
+	}
 	if strings.HasPrefix(strings.ToLower(key), "bearer ") {
 		key = strings.TrimPrefix(strings.ToLower(key), "bearer")
 		return strings.TrimSpace(key)