Adjust the timeout settings to prevent forever-hanging connections.

proxy.go

@@ -18,8 +18,13 @@ func createFasthttpClient(timeout int) *fasthttp.Client {
 		TLSConfig: &tls.Config{
 			InsecureSkipVerify: true,
 		},
-		MaxConnsPerHost:               100,
+		MaxConnsPerHost: 100,
-		MaxIdleConnDuration:           time.Duration(timeout*5) * time.Minute,
+		MaxIdleConnDuration: func() time.Duration {
+			if timeout%2 != 0 {
+				timeout++
+			}
+			return time.Duration(timeout/2) * time.Second
+		}(),
 		ReadTimeout:                   time.Second * time.Duration(timeout),
 		WriteTimeout:                  time.Second * time.Duration(timeout),
 		DisableHeaderNamesNormalizing: true,