Add fool tolerance

VirtualScrollList.js

@@ -181,6 +181,11 @@ export class VirtualScrollList extends React.Component
 
     driver = () =>
     {
+        if (!this.viewport || !this.viewport.offsetParent)
+        {
+            // Fool tolerance - do nothing if we are hidden
+            return false;
+        }
         const newState = virtualScrollDriver(
             {
                 totalItems: this.props.totalItems,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dynamic-virtual-scroll",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "author": {
     "name": "Vitaliy Filippov",
     "email": "vitalif@yourcmc.ru",