[cups.development] [RFE] STR #3638: Stackable authentication support

[Michael Sweet]

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[STR Closed w/o Resolution]

There is no support for this at the HTTP level, so that kills it as a CUPS
feature.

We recently added support for fallback auth-info (proxied) credentials to
better support SMB printing, but we won't be able to do it for IPP, sorry.

Link: http://www.cups.org/str.php?L3638
Version:  -feature
Fix Version: None