Handle browser's back button in result table

src/client/components/facet_results/ResultTable.js

@@ -113,6 +113,13 @@ class ResultTable extends React.Component {
         this.props.updatePage(this.props.resultClass, 0);
       }
     }
+    // handle browser's back button
+    const locationChanged = this.props.routeProps.location !== prevProps.routeProps.location;
+    if (locationChanged) {
+      const qs = this.props.routeProps.location.search.replace('?', '');
+      const newPage = parseInt(querystring.parse(qs).page);
+      this.props.updatePage(this.props.resultClass, newPage);
+    }
   }
 
   fetchResults = () => {