W liście Mike Orr z dnia czwartek 04 lutego 2010: > I thought that the purpose of HEAD was to tell whether a resource had > changed, and that it had effectively been made obsolete by > If-Modified-Since and Etag. I suppose you could use HEAD to see if > the resource exists or you have permission to view it, but I don't > know of anybody that does that. In any case, these uses do not depend > on Content-Length. The only use of prechecking Content-Length is, um, > to see how large the response is?
Some bots do: "HEAD /posts/3 HTTP/1.1" 405 0 "-" "WordPress.com mShots; http://support.wordpress.com/contact/"; "GET /posts/3 HTTP/1.1" 200 7160 "-" "WordPress.com mShots; http://support.wordpress.com/contact/"; "HEAD / HTTP/1.1" 405 0 "http://www.netcraft.com/survey/"; "Mozilla/4.0 (compatible; Netcraft Web Server Survey)" This is from a site that does not translate HEAD into GET but does check if request method is acceptable (and forgets to account for HEAD) -- Paweł Stradomski -- You received this message because you are subscribed to the Google Groups "pylons-discuss" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en.
