Goal
If a relay returns a well-formed HTTP response whose body we can't decode, re-request with Accept: application/json once before giving up.
Scope
mev_boost/submit_block.rs: retry on v1 decode failure (JSON parse error, SSZ parse error, missing Content-Type, missing Eth-Consensus-Version on declared SSZ response).mev_boost/get_header.rs: mirror for symmetry. Currently errors if the relay declares SSZ Content-Type but omits Eth-Consensus-Version.
Goal
If a relay returns a well-formed HTTP response whose body we can't decode, re-request with
Accept: application/jsononce before giving up.Scope
mev_boost/submit_block.rs: retry on v1 decode failure (JSON parse error, SSZ parse error, missing Content-Type, missing Eth-Consensus-Version on declared SSZ response).mev_boost/get_header.rs: mirror for symmetry. Currently errors if the relay declares SSZ Content-Type but omits Eth-Consensus-Version.