diff --git a/pkg/tsdb/loki/loki.go b/pkg/tsdb/loki/loki.go
index fb69e6cc11b..624cc88a796 100644
--- a/pkg/tsdb/loki/loki.go
+++ b/pkg/tsdb/loki/loki.go
@@ -173,24 +173,10 @@ func (s *Service) QueryData(ctx context.Context, req *backend.QueryDataRequest)
 	return queryData(ctx, req, dsInfo, s.plog, s.tracer)
 }
 
-func getAuthHeadersForQueryData(headers map[string]string) map[string]string {
-	data := make(map[string]string)
-
-	if auth := headers["Authorization"]; auth != "" {
-		data["Authorization"] = auth
-	}
-
-	if cookie := headers["Cookie"]; cookie != "" {
-		data["Cookie"] = cookie
-	}
-
-	return data
-}
-
 func queryData(ctx context.Context, req *backend.QueryDataRequest, dsInfo *datasourceInfo, plog log.Logger, tracer tracing.Tracer) (*backend.QueryDataResponse, error) {
 	result := backend.NewQueryDataResponse()
 
-	api := newLokiAPI(dsInfo.HTTPClient, dsInfo.URL, plog, getAuthHeadersForQueryData(req.Headers))
+	api := newLokiAPI(dsInfo.HTTPClient, dsInfo.URL, plog, req.Headers)
 
 	queries, err := parseQuery(req)
 	if err != nil {