Check for SSR failure

src/components/Carousel/helpers.js

@@ -28,17 +28,21 @@ export function getSwipeDirection(x1, x2, y1, y2) {
 }
 
 export function isTouchDevice() {
+  if (typeof document !== 'undefined') {
     return 'ontouchstart' in document.documentElement
   }
+}
 
 export function sortNumber(a, b) {
   return a - b
 }
 
 export function getScreenWidth() {
+  if (typeof document !== 'undefined') {
     return (
       window.innerWidth ||
       document.documentElement.clientWidth ||
       document.body.clientWidth
     )
   }
+}