1 files changed, 15 insertions, 0 deletions
diff --git a/frontend/src/redux/app.js b/frontend/src/redux/app.js
new file mode 100644
index 00000000..172dc960
--- /dev/null
+++ b/frontend/src/redux/app.js
@@ -0,0 +1,15 @@
+export const makeSelectLocationState = () => {
+  let prevRoutingState;
+  let prevRoutingStateJS;
+
+  return (state) => {
+    const routingState = state.get('routing')
+
+    if (!routingState.equals(prevRoutingState)) {
+      prevRoutingState = routingState
+      prevRoutingStateJS = routingState.toJS()
+    }
+
+    return prevRoutingStateJS;
+  }
+}