Article:		Doing HTTP Caching Right: Introducing httplib2
Subject:		Implementations
Date:		2006-02-03 17:47:51
From:		Joe Gregorio
Response to: Implementations
Mark, I've tried to be as careful as I could in my implementation. For example, I will use all validators that a server sends; if it sends just an ETag I use that, if a server sends just Last-Modified I use that, if a server sends both then I will send back both when validating. Httplib2 also adds in a "Cache-Control: no-cache" header if a request is sent with "Pragma: no-cache". Vary headers can be a problem for intermediaries, but I don't think there is anything much I can do about that as a client library.

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• Implementations
  2006-02-03 20:56:07 Mark Nottingham
  
  That's great; I wouldn't think you'd do a bad job; just pointing out that people shouldn't have very high expectations for other implementations.

  
  Cheers,