Hi Marco,

On Thu, Mar 03, 2022 at 12:26:09PM +0100, Marco Corte wrote:
> Hi!
> 
> I can add a "reason phrase" to a response based on the HTTP status like
> this:
> 
> http-response set-status 200 reason OK if { status eq 200 }
> 
> Is there any way to add the reason phrase for a set of codes without an
> explicit rule for each code?
> I would like to write a set of rules like this
> 
> http-response set-status 200 reason OK if { status eq 200 }
> http-response set-status %[status] reason NotOK unless { status eq 200 }

Unfortunately I don't see a way to easily do this. I didn't even
remembered that the internal representation for the reason was
conveyed, I thought it was built when serializing the status on the
wire.

In fact, since the advent of HTTP/2 which completely dropped the reason
phrase, you really cannot trust that element anymore at all. It used to
be very unreliable even before HTTP/2 since plenty of proxies were
placing their own reason for a given code, but nowadays it's really
impossible to trust it anymore.

Out of curiosity, what would be your use case ?

Thanks,
Willy

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