fix data race with errors in proxy raw

aldas · aldas · commit 92b41ebc13ce · 2025-12-11T23:21:24.000+02:00
diff --git a/middleware/proxy.go b/middleware/proxy.go
@@ -169,8 +169,8 @@ func proxyRaw(t *ProxyTarget, c echo.Context, config ProxyConfig) http.Handler {
 
 		errCh := make(chan error, 2)
 		cp := func(dst io.Writer, src io.Reader) {
-			_, err = io.Copy(dst, src)
-			errCh <- err
+			_, copyErr := io.Copy(dst, src)
+			errCh <- copyErr
 		}
 
 		go cp(out, in)

Original file line number	Diff line number	Diff line change
`@@ -169,8 +169,8 @@ func proxyRaw(t *ProxyTarget, c echo.Context, config ProxyConfig) http.Handler {`
`169`	`169`
`170`	`170`	`errCh := make(chan error, 2)`
`171`	`171`	`cp := func(dst io.Writer, src io.Reader) {`
`172`		`- _, err = io.Copy(dst, src)`
`173`		`- errCh <- err`
	`172`	`+ _, copyErr := io.Copy(dst, src)`
	`173`	`+ errCh <- copyErr`
`174`	`174`	`}`
`175`	`175`
`176`	`176`	`go cp(out, in)`