[amber] use the configured transport with oauth2
Test: CQ
Change-Id: I473fd4946aa3ffa4e03c4f9f531117109c821753
diff --git a/go/src/amber/source/source.go b/go/src/amber/source/source.go
index c2deb1e..4939c69 100644
--- a/go/src/amber/source/source.go
+++ b/go/src/amber/source/source.go
@@ -372,11 +372,13 @@
ctx := context.WithValue(context.Background(), oauth2.HTTPClient, httpClient)
timeout := httpClient.Timeout
+ transport := httpClient.Transport
tokenSource = cfg.TokenSource(ctx, token)
httpClient = oauth2.NewClient(ctx, tokenSource)
httpClient.Timeout = timeout
+ httpClient.Transport = transport
return httpClient, tokenSource
}