NestJS Zero to Hero 16 — Realtime với WebSocket và Server-Sent Events
Chọn SSE hay WebSocket, xác thực connection, authorize room theo tenant, xử lý reconnect/replay/backpressure và broadcast qua nhiều Nest replica.
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Web Security for Frontend Devs · Part 25 — Cross-Site WebSocket Hijacking (CSWSH)
Bonus track: the WebSocket handshake carries the victim cookies and the browser never applies CORS to it — so any site can open an authenticated socket if the server skips the Origin check. The mechanism, the defenses, and a live simulator.