I am creating a library for handling client-side caching via HTTP on a web server (i.e. processing HTTP links with support for If-Match, If-Modified-Since, If-None-Match and If-Unmodified-Since HTTP) and I'm working now over ETags (entity tags). My question is, should ETags be case-sensitive, or case-insensitive? I was looking through RFC 2616 ( http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html ) and it does not specify.
I can only assume that this means that they must be case sensitive, but I want to make sure that I follow the standard.
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