1 Introduction

The WebSocket Protocol is an Internet Engineering Task Force (IETF) standard protocol designed to allow asynchronous bidirectional communication between hosts over a network that might only provide connectivity via web proxies.

This document specifies extensions to the WebSocket Protocol.

Sections 1.5, 1.8, 1.9, 2, and 3 of this specification are normative. All other sections and examples in this specification are informative.