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xds: Make RawMessageClientInterceptor conditional on ext_proc flags (v1.83.x backport) - #13018
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…rpc#13015) Only add RawMessageClientInterceptor to the interceptor chain in XdsNameResolver when either GRPC_EXPERIMENTAL_XDS_EXT_PROC_ON_CLIENT or GRPC_EXPERIMENTAL_XDS_EXT_PROC_ON_SERVER is true. This prevents RawMessageClientInterceptor from corrupting method descriptors and causing empty payloads on retry attempts for regular xDS channels. Temporary fix for grpc#13010
shivaspeaks
approved these changes
Sep 1, 2026
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Backport of #13015 to v1.83.x.
Only add RawMessageClientInterceptor to the interceptor chain in XdsNameResolver when either GRPC_EXPERIMENTAL_XDS_EXT_PROC_ON_CLIENT or GRPC_EXPERIMENTAL_XDS_EXT_PROC_ON_SERVER is true. This prevents RawMessageClientInterceptor from corrupting method descriptors and causing empty payloads on retry attempts for regular xDS channels.
Temporary fix for #13010