What is "400 DPE http1.codec_error" in Istio-ingressgateway?

Hello, I applied TLS on istio-ingressgateway to access kubeflow dashboard as HTTPS, but I found 400 DPE http1.codec_error in istio-ingressgateway pod log.

Also, when I tried to curl command with https domain, it showed “SSL received a record that exceeded the maximum permissible length”.

What is meaning of these error?

Not saying this is your issue, but I saw a similar error and found out that enabling protocol sniffing (which should be enabled by default) fixed the issue.