rack.rb in instana-1.200.0

- old
+ new

@@ -13,10 +13,10 @@
     def call(env)
       req = InstrumentedRequest.new(env)
       kvs = {
         http: req.request_tags,
         service: ENV['INSTANA_SERVICE_NAME']
-      }.compact
+      }.reject { |_, v| v.nil? }
 
       current_span = ::Instana.tracer.log_start_or_continue(:rack, {}, req.incoming_context)
 
       status, headers, response = @app.call(env)
 