check if server in controller verification

Author: jscottsmith

src/components/Parallax/hooks.ts

@@ -3,10 +3,11 @@ import { useEffect } from 'react';
 
 export function useVerifyController(controller: ParallaxController) {
   useEffect(() => {
+    const isServer = typeof window === 'undefined';
     // Make sure the provided controller is an instance of the Parallax Controller
     const isInstance = controller instanceof ParallaxController;
     // Throw if neither context or global is available
-    if (!controller && !isInstance) {
+    if (!isServer && !controller && !isInstance) {
       throw new Error(
         "Must wrap your application's <Parallax /> components in a <ParallaxProvider />."
       );