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From Leif Hedstrom <>
Subject Re: How to set the Host header of the request to the origin server in hierachical caching
Date Tue, 08 Mar 2016 22:05:34 GMT

> On Mar 8, 2016, at 2:46 PM, Jeremy Payne <> wrote:
> The parent remap would then have to match on:
> map <>
> Last time I checked this is how it worked. I know there was talks of having a parent.config
option which forced the child to send a relative URL request. Instead of the full URL GET
currently sent to the parent.

That used to be an option in the remap configuration setting, but was removed (because it
was crippled). John Rushford is working on a replacement for this feature, such that parent
request follow normal (“origin”) request semantics, and not the way parent proxying works
today. I’m hoping that it’ll be configurable per rule in parent.config  (and not a global
setting as it was before). Alternatively, maybe it could be an overridable records.config

That much said, I believe Jeremy is right, in that pristine host headers don’t apply to
parent selection. It looks like parent selection happens right after remapping, and it does
not consider pristine host headers. John and Phil, can you confirm?

Note that the parent.config selection happens on the remapped host name (I’m pretty sure,
I’m sure someone will correct me :).


— Leif

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