Make the router stricter

Author: dunglas

client/src/routes/book.js

@@ -3,8 +3,9 @@ import { Route } from 'react-router-dom';
 import { List, Create, Update, Show } from '../components/book/';
 
 export default [
-  <Route path="/books/create" component={Create} exact={true} key="create" />,
-  <Route path="/books/edit/:id" component={Update} exact={true} key="update" />,
-  <Route path="/books/show/:id" component={Show} exact={true} key="show" />,
-  <Route path="/books/:page?" component={List} strict={true} key="list" />
+  <Route path="/books/create" component={Create} exact key="create" />,
+  <Route path="/books/edit/:id" component={Update} exact key="update" />,
+  <Route path="/books/show/:id" component={Show} exact key="show" />,
+  <Route path="/books/" component={List} exact strict key="list" />,
+  <Route path="/books/:page" component={List} exact strict key="page" />
 ];