[muteor]

I thought that HTTP/2 didn't fix head-of-line blocking and this was why QUIC (https://www.chromium.org/quic) existed.

From the project page:

Key features of QUIC over existing TCP+TLS+HTTP2 include

* Dramatically reduced connection establishment time

* Improved congestion control

* Multiplexing without head of line blocking

* Forward error correction

* Connection migration

[Matthias247]

IMHO HTTP/2 solves HOL blocking partly. It will allow other streams to proceed if one stream is blocked due to flow control (receiver doesn't read from the stream). E.g. if you have multiple parallel downloads over a single HTTP/2 connection one blocked/paused stream won't block the others.

However it doesn't have abilities that will allow individual streams to proceed if some packets are lost that only hold information for a single stream.