hk220804

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![1659580055(1)](https://user-images.githubusercontent.com/49704260/182755612-6e8e6869-d650-468e-b59b-1ab308f0d56f.jpg) I wan to invoke innner service by http1.1 protocol, and config server.http2.enabled=true. As shown in the screenshot, the result throws the exception. So how to config h2c in gateway...