Re: [openresty-en] Help with $upstream_cache_status removing headers

agentzh · 2016-09-05T03:50:44+00:00

Here is working code that probably does exactly that with this library -- I opensourced our ssl certificate manager a few months ago: lua-resty-http&#xA...

Re: [openresty-en] Help with $upstream_cache_status removing headers

agentzh

Hello!

On Thu, Sep 1, 2016 at 7:53 PM, c0nw0nks wrote:
> So with my upstream if the cache status is MISS, EXPIRED or BYPASS what
> means the request hit the origin server i want the "Set-Cookie" sent.
>
> But if the response is being delivered by a page found in the cache i want
> to remove it. I do have more_headers and LUA for nginx but not sure what is
> the best way to do this or if anyone has done this before.
>

It's best to be done in header_filter_by_lua* using the Lua API
ngx.header and ngx.var.

Regards,
-agentzh

c0nw0nks

Thanks for the response i already did that and solved it i don't know how efficient my method actually is since i am removing the set-cookie header with nil i can't see any documentation on an alternative or better way to remove headers.

ngx.header.set_cookie = nil

I am not having any issues with my solution regardless is there a more preferred coding guideline to remove headers or is this suitable.

On Sunday, 4 September 2016 20:50:49 UTC+1, agentzh wrote:

Hello!

On Thu, Sep 1, 2016 at 7:53 PM, c0nw0nks wrote:
> So with my upstream if the cache status is MISS, EXPIRED or BYPASS what
> means the request hit the origin server i want the "Set-Cookie" sent.
>
> But if the response is being delivered by a page found in the cache i want
> to remove it. I do have more_headers and LUA for nginx but not sure what is
> the best way to do this or if anyone has done this before.
>

It's best to be done in header_filter_by_lua* using the Lua API
ngx.header and ngx.var.

Regards,
-agentzh