When Etag header send to browser, Safari doesn't resend HTTP_IF_NONE_MATCH in next queries to www server !!
Created attachment 22466 [details] php source
Yes, ETags are not supported by underlying closed source system frameworks that WebKit uses for loading data from network. Please file a bug via <http://bugreport.apple.com> if you want Apple engineers to implement ETags. Closing as INVALID per our policy, as a non-WebKit issue.
Sorry, I have a problem: how to become a ADC Members?
Ok, sended to http://bugreport.apple.com/ as 'Problem ID: 6100142'
Thank you!
*** Bug 275248 has been marked as a duplicate of this bug. ***