Fix event handler stacking leak

index.mjs

@@ -35,6 +35,7 @@ connections
         // processed in order (sorted on sequence) and emitted in order
         // to clients to prevent async tx sequence problems.
       ] })
+    }
 
     c.on("validation", validation => onValidation({
       connectionUrl: c.getState()?.server?.uri,
@@ -48,7 +49,6 @@ connections
       ledger,
       connection: c,
     }))
-    }
 
     c.on('online', () => subscribe())