Thomas Broyer ha scritto: > 2007/10/8, Manlio Perillo: >> However there are two problems here: >> 1) It is not clear if WSGI explicitly allows an implementation to skip >> the iteration over the app_iter object, for optimization purpose >> 2) For a WSGI implementation embedded in an existing webserver, the >> most convenient method to perform cache validation is to let the >> server do it; however this requires to send the headers as soon as >> start_response is called, and this is not allowed. > > Oops, sorry, hadn't correctly understood what you were saying. Of > course you're right here. >
A precisation: this is only an optimization. Nginx will always do the cache validation (if the appropriate header filter is enabled) and will discard the body if the cliend has a fresh copy. The same applies to If-Range, but in this case it is not possible to optimize the WSGI application execution. Regards Manlio Perillo _______________________________________________ Web-SIG mailing list Web-SIG@python.org Web SIG: http://www.python.org/sigs/web-sig Unsubscribe: http://mail.python.org/mailman/options/web-sig/archive%40mail-archive.com
