I'm going to push back on that a bit. I'd put forth that any browser that doesn't understand Cache-Control: no-store is also not going to do Ajax (because it'll lack XmlHttpRequest), isn't going to have what people today consider a usable JS implementation, etc. CC has been around for a *long* time. I'm in the midst of putting together some tools to get some metrics off of implementations ATM... Cheers, On 25/06/2009, at 10:46 AM, Jamie Lokier wrote: > This is what I've found, for the paranoid: > > Pragma: no-cache > Cache-Control: no-cache,max-age=0,must-revalidate,pre- > check=0,post-check=0 > Expires: VERY-OLD-DATE > > The apparently redundant fields are in case of implementations which > don't understand, or don't correctly implement, the other fields. > > There's probably a browser out there which doesn't understand > "Cache-Control: no-cache,..." when there's anything else on the same > line. IE had a reputation for being a bit rigid in how it recognises > some headers. But I'm pretty sure anything like that will recognise > "Pragma: no-cache" so it doesn't matter. -- Mark Nottingham http://www.mnot.net/Received on Thursday, 25 June 2009 01:26:44 UTC
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