fix(vite): [dev proxy] sse not close

Author: 0xJacky

app/vite.config.ts

@@ -1,3 +1,4 @@
+import { Agent } from 'node:http'
 import { fileURLToPath, URL } from 'node:url'
 import vue from '@vitejs/plugin-vue'
 import vueJsx from '@vitejs/plugin-vue-jsx'
@@ -81,6 +82,22 @@ export default defineConfig(({ mode }) => {
           changeOrigin: true,
           secure: false,
           ws: true,
+          timeout: 5000,
+          agent: new Agent({
+            keepAlive: false,
+          }),
+          onProxyReq(proxyReq, req) {
+            proxyReq.setHeader('Connection', 'keep-alive')
+            if (req.headers.accept === 'text/event-stream') {
+              proxyReq.setHeader('Cache-Control', 'no-cache')
+              proxyReq.setHeader('Content-Type', 'text/event-stream')
+            }
+          },
+          onProxyReqWs(proxyReq, req, socket) {
+            socket.on('close', () => {
+              proxyReq.destroy()
+            })
+          },
         },
       },
     },