fix: return 500 on proxy error only if possible (fixes #9172) (#9193)

vitejs · Jul 18, 2022 · b2f6bdc · b2f6bdc
1 parent 99b0e67
commit b2f6bdc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/vite/src/node/server/middlewares/proxy.ts b/packages/vite/src/node/server/middlewares/proxy.ts
@@ -55,7 +55,7 @@ export function proxyMiddleware(
             error: err
           }
         )
-        if (!res.writableEnded) {
+        if (!res.headersSent && !res.writableEnded) {
           res
             .writeHead(500, {
               'Content-Type': 'text/plain'