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HTTP/2

Published in May 2015 as RFC 7540 [1], HTTP/2 is the latest major revision of the HTTP protocol. It is mostly based on Google's SPDY protocol and offers a new binary framing layer that is not backward-compatible with HTTP/1. As mentioned previously, most of its features were developed through the SPDY project. The most notable difference between SPDY and HTTP/2 was the way that the new protocol compressed its headers. Whereas SPDY relied on dynamically compressing headers with gzip, the HTTP/2 protocol used a new method named HPACK, which made use of a fixed Huffman code-based algorithm. This new method was needed in order to avoid a problem that was found with SPDY, by which data compression led to the possible leakage of private ...