Allow appending headers

[luka-mikec]

Hello, would it be possible to add a configuration option that would append headers to all responses? In my case, I would like to add Cache-Control: no-cache to all responses.

Describe the Enhancement

Currently there is no way (as far as I know) to append headers without an additional proxy in place. With the enhancement we would be able to set an option called e.g. BP_WEB_SERVER_APPEND_HEADERS.

Possible Solution

Adding a new configuration option such as BP_WEB_SERVER_APPEND_HEADERS.

Motivation

In my case, I want to block browsers caching pages. While this is maybe not a very common need, I am guessing it is not rare that people need to add various headers to their responses.