Andrew Betts (Clearing User Cache) and Hooman Beheshti (Revisiting HTTP/2)

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This month we have Andrew Betts who will be telling us all about clearing you users cache and Hooman Beheshti who will be revisiting HTTP/2.

Six ways to clear your users’ cache
A session presented by Andrew Betts
Skill level: Intermediate / Advanced

Clearing the browser cache from afar is pretty hard. You ship a bad version of an asset, and aside from phoning all your users and asking them politely to clear their cache, what can you do? Turns out this is way more nuanced and complex than you might think.

Revisiting HTTP/2
A session presented by Hooman Beheshti
Skill level: Intermediate / Advanced

RFC 7540 was ratified over 2 years ago and, today, all major browsers, servers, and CDNs support the next generation of HTTP. Just over a year ago, at Velocity (https://www.slideshare.net/Fastly/http2-what-no-one-is-telling-you), we discussed the protocol, looked at some real world implications of its deployment and use, and what realistic expectations we should have from its use.

Now that adoption is ramped up and the protocol is being regularly used on the Internet, it's a good time to revisit the protocol and its deployment. Has it evolved? Have we learned anything? Are all the features providing the benefits we were expecting? What's next?

In this session, we'll review protocol basics and try to answer some of these questions based on real-world use of it. We'll dig into the core features like interaction with TCP, server push, priorities and dependencies, and HPACK. We'll look at these features through the lens of experience and see if good practice patterns have emerged. We'll also review available tools and discuss what protocol enhancements are in the near and not-so-near horizon.

Beer & Pizzas will be provided due to the generosity of our Group Sponsors : Akamai, Apica, Cedexis, Google Developers, Distil Networks, Fastly, The Financial Times, NCC Group, New Relic, NS1 and Varnish Software.