gRPC-Web plugin not working

[brnch]

Where is the problem?

As you can verify, the gRPC-Web request handling seems incorrect. Specifically, the te header, which is mandatory in HTTP/2.0, is missing after converting from HTTP/1.1 to HTTP/2.0. As a result, the gRPC server rejects the gRPC-Web messages processed by this plugin and returns the following error:

"grpc-message: Missing :te header"

What is your suggestion?

Add the "te" header to the request headers when converting to HTTP/2.0!!!

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