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Subject: FW: [xrds-simple] X-XRDS-Location and redirects

This question was just asked on the XRDS-Simple list, and it was good enough
I though it needed scrutiny here as well.


-----Original Message-----
From: xrds-simple@googlegroups.com [mailto:xrds-simple@googlegroups.com] On
Behalf Of Manger, James H
Sent: Wednesday, April 02, 2008 10:46 PM
To: xrds-simple@googlegroups.com
Subject: [xrds-simple] X-XRDS-Location and redirects

Q. Do HTTP redirects or an X-XRDS-Location header take precedence?

Phrased differently, what should a client do after the following discovery
request & response?

->  GET /some/resource HTTP/1.1
    Host: example.org
    Accept: application/xrds+xml

<-  303 See Other
    X-XRDS-Location: http://example.org/some/resource.xrds
    Location: http://example.org/some/resource.html

Option 1: follow X-XRDS-Location

->  GET /some/resource.xrds HTTP/1.1

Option 2: follow HTTP redirect

->  GET /some/resource.html HTTP/1.1

I don't think the specs (XRDS or XRDS-Simple) indicates which
option is right, or whether the client is free to choose.

I prefer option 1 -- probably as allowed client behaviour, or perhaps
as required behaviour.

Whatever the choice, it would be good to explicitly state it in the spec.

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