Ticket #429 (closed design: wontfix)
|Reported by:||firstname.lastname@example.org||Owned by:|
|Component:||p1-messaging||Severity:||In WG Last Call|
Description (last modified by email@example.com) (diff)
"Multiple header fields with the same field name MUST NOT be sent in a message unless the entire field value for that header field is defined as a comma-separated list [i.e., #(values)]."
In practice, naive implementation can result in unintended results, e.g.,
Location: http://abc.com Location: http://xyz.com
Some implementations will choose the 1st one, some will choose the 2nd one, and some may see the merged http://abc.com,http://xyz.com (a valid URI).