Hacker News new | ask | show | jobs
by youngtaff 2652 days ago
Pretty sure server push is being deprecated - current implementation is 'only half a feature', as clients lack the ability to tell the server what's already in cache.

In theory the client can cancel the response for a resource it's already got but by the time the response bytes reach the client it's really too late
1 comments
cm2187 2652 days ago
Yeah and if the client volunteers the list of all it has in cache it would result in some massive requests and a kind of quasi-cookie.

I always found this feature interesting but weird.

link
VBprogrammer 2652 days ago
Random thought. But isn't this a potential use for a bloom filter?
link
youngtaff 2652 days ago
Yes bloom filters were a potential for Cache Digests, original prototype for Cache Digests used Golomb coded set as memory representation is smaller than Bloom filter

https://github.com/h2o/h2o/issues/421

But then Cache Digests moved onto Cuckoo Filters - https://github.com/httpwg/http-extensions/pull/413

link