While this is factually a correct way we should take into account that CE are kinda low-level transport protocol messages. Creating a lot of intermediate objects here like doing this headers normalization may look like a small thing but will lead to bloating up resources consumption and while this is some new code, it may be a good opportunity to also think about doing this in an optimal way when possible.

it may be better to have a singlefor loop and do all the checks we want (CE-prefixed headers, content type header, etc) in a single run to avoid extra data structured and extra lookups.

That's fair. Let me see what can I do.

Done. Let me know if it's better