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Mvc websockets - #4324
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Mvc websockets#4324
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Routes with ws/wss URIs, or http routes receiving an Upgrade: websocket request, are now proxied as WebSockets when spring-boot-starter-websocket is on the classpath. Cross-origin handshakes are rejected by default; configure spring.cloud.gateway.server.webmvc.websocket.allowed-origins to allow other origins. Fixes spring-cloudgh-3442 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Pongs are now relayed in both directions. Pings cannot be relayed: the servlet WebSocket API never delivers them, and the container answers them itself, which the docs now explain. Adds unit tests for WebSocketProxyBridge and integration tests for lb:// routes, after-filter headers on the handshake response, and ping/pong handling. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
allowedOrigins now maps to exact origins and the new allowedOriginPatterns to wildcard patterns on the origin interceptor.
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Fixes #3442