Update/remove default headers using Extension Tool
Is there a way I can remove a default HTTP header being sent by response? for example, removing Content-Length key and value from the response headers.
The content-length header is generated as part of the HTTP specification. Are you asking how to sending the response using chunking? When sending a chunked response the content-length header is omitted. If you add a "transfer-encoding" header to the responder with the value set to "chunked" then the server will not set the content-length header.
Or is there a different header you want removed?0
In the case where there is no response body, open your Message Responder, click "Options > Message Exchange Pattern", then enable "Notification Only". Otherwise, if there is a message body, then the Content-Length header is required unless HTTP chunking is enabled.0