Hi Jonathan,
about the third redirection meaning:
3. The server is asking the client to route through an additional
proxy prior to visiting it, so that the recursed request
generated by the client pushes an additional Route onto the Route
set.
I was wondering if it should be possible insert more than only one contact
into the existing route set.
I'd like to know your opinion, because in my understanding it should not
possible
due to the "alternative" meaning of different locations into the the Contact
header field; in fact the RFC3261 states:
"When a redirect server returns a 3xx response to a request, it
populates the list of (one or more) alternative locations into the
Contact header field. An "expires" parameter to the Contact header
field values may also be supplied to indicate the lifetime of the
Contact data."
About the persistence of the redirection for a mid-dialog request,
I am not sure it should persist just for the duration of the transaction,
instead the persistence should be managed by the "expires" parameter.
regards
Sal
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