Grpc 向 Brpc迁移遇到的问题

[982945902]

Describe the bug (描述bug)
client,server都采用h2:grpc协议，client请求server直连一切正常, 但是通过nginx转发会有一半出错, 请教下原因, 报错如下

upstream sent invalid http2 table index: 63 while reading response header from upstream
upstream sent invalid header while reading response header from upstream
错误码502 bad gate way

To Reproduce (复现方法)
必现
Expected behavior (期望行为)
正常通过

Versions (各种版本)
OS:ubuntu122.04
Compiler:gcc version 11.3.0 (Ubuntu 11.3.0-1ubuntu122.04)
brpc:brpc-1.4.0
protobuf:protobuf-3.19.4

Additional context/screenshots (更多上下文/截图)

[jiangdongzi]

同遇到

[jiangdongzi]

#2176

[982945902]

同遇到

你可以看下我fork 的分支， 暂时规避了这个问题 https://github.com/982945902/brpc/tree/a1

[982945902]

https://trac.nginx.org/nginx/ticket/1538