message: Prevented Suspense if on server
  Checked if window exists (client side only) before rendering Suspense component
diff: @@ -40,7 +40,7 @@ var Suspender = ({freeze, children}) => {
  };
  var Freeze = ({enabled, children}) => {
  - const suspendable = typeof React.Suspense !== 'undefined';
  + const suspendable = typeof React.Suspense !== 'undefined' && typeof window !== 'undefined';
  const suspender = <Suspender freeze={enabled && suspendable}>{children}</Suspender>;
  return suspendable ? <Suspense fallback={null}>{suspender}</Suspense> : suspender;
  };
  