I have an upstream API that is expecting a request header key with a period “.” (abc.efg), however, when the request gets to Tyk, the header is being dropped. We have a NGINX ingress and set the config ignore_invalid_headers: “false” but this did not solve issue. Is there a Tyk level config that I’m missing?
Hi @macgator14,
Welcome to the community 
Could you please confirm which Gateway version you’re running?
I see capitalization, but it seems Tyk is not dropping this header. Below a screenshot of a request to httpbin’s /anything endpoint
