Episode 114 - HTTP/2

short is a major revision of the hyper text transfer protocol that improves the performance of the web. It uses a binary protocol and multiplexing. In this video I want to go through how HTTP/2 works, its pros and cons and show the performance difference between HTTP 1.1 and HTTP/2 Http/1 request has to wait for a response And if you used up your connection response you can send anything else. Source Code: https://github.com/hnasr/javascript_playground/tree/master/staticpage So hack ! 6 tcp connections Pros One connection Multipex Push ( have to enable) Hpack (compress) Cons Abuse push Proxies that dont support it might slow down Load balancer layer 7 (a layer 7 load balancer that doesnt support h2 will slow down when your web server supports it) Cards 1:25 HTTP crash course 12:30 TLS Time codes HTTP 1.1 2:15 HTTP/2 5:50 HTTP/2 With Push 8:25 HTTP/2 Pros 9:48 HTTP/2 Cons 14:10 Demo 17:15 +----------+--------+---------+---------+ | Protocol | Online | Fast 3G | Slow 3G | +----------+--------+---------+---------+ | HTTP 1.1 | 94 ms | 10 s | 36 s | +----------+--------+---------+---------+ | HTTP/2  | 171 ms | 2.7 s  | 10 s | +----------+--------+---------+---------+