Zope does not honor part of RFC 7232 (HTTP 1.1 conditional requests): If-None-Match, If-Unmodified-Since

[d-maurer]

RFC 7232 (part of the new HTTP 1.1 spec) defines provisions to detect "lost update" conditions: If-None-Match and If-Unmodified-Since. Zope does not honor those conditional requests.

Likely those conditional requests are not used by "normal" browsers and then this is not a big issue.