Manipulating WebSocket handshakes with Burp Suite

A WebSocket handshake is an HTTP message that establishes a WebSocket connection. You can often access additional attack surface by manipulating these messages. This tutorial explains how to clone, modify, and resend WebSocket handshakes in Burp Repeater. Learn more at: https://portswigger.net/burp/documentation/desktop/testing-workflow/websockets/manipulating-websocket-handshakes