[webkit-dev] X-Purpose on prefetching requests

[Alexey Proskuryakov]

24.09.2010, в 17:31, Gavin Peters (蓋文彼德斯) написал(а):

> - Cost.  Why make requests longer than they need to be?


If used correctly, this will make responses longer, too (due to Vary: X-Purpose). Due to the nature of Vary, it will need to be sent with every response for the resource, not just those that are in response to prefetch requests.

Eric has made another good point in Bugzilla - we don't explain the purpose in lots of other cases, from loading into a display:none frame to XMLHttpRequest. Why should Prefetch be all the different?

- WBR, Alexey Proskuryakov