1 files changed, 4 insertions, 1 deletions
diff --git a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go
index 068aef300..3b5f3839f 100644
--- a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go
+++ b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go
@@ -177,8 +177,11 @@ func (d *client) UploadTraces(ctx context.Context, protoSpans []*tracepb.Resourc
 			if _, err := io.Copy(&respData, resp.Body); err != nil {
 				return err
 			}
+			if respData.Len() == 0 {
+				return nil
+			}
 
-			if respData.Len() != 0 {
+			if resp.Header.Get("Content-Type") == "application/x-protobuf" {
 				var respProto coltracepb.ExportTraceServiceResponse
 				if err := proto.Unmarshal(respData.Bytes(), &respProto); err != nil {
 					return err