Describe the bug
As Mittens uses the Golang http2 library, the default of 10 MB is used for Transport#MaxHeaderListSize.
Having a lot of concurrent HTTP/2 streams in place this can lead to potential memory issues on the server side as it was the case here
To Reproduce
Use Mittens together with a Jetty v12 server using the H2C protocol. Check the according memory usage of the server.
Expected behavior
Either a configuration parameter for MaxHeaderListSize or a smaller value.