add-response-header

Adds a header value to the answer on its way back, next to the ones the service sent. Its use is the headers that are lists by design.

Parameters

Name	Type	Required	What it does
`name`	string	yes	The header to add.
`value`	string	yes	The value added.

Example

filters:
  - type: add-response-header
    args:
      name: Vary
      value: Accept-Language

Notes

Adds a value next to the ones the service sent. Use it on multi-valued headers such as Vary or Set-Cookie; two values on a single-valued header are ambiguous, and it is the browser that decides which one wins.

For a single decision, use set-response-header. For a header that arrived twice, use dedupe-response-header.