From 3dd9604f3e9491b7806b9a7286e58ce4714ab3e1 Mon Sep 17 00:00:00 2001
From: "Manu Mtz.-Almeida" <manu.mtza@gmail.com>
Date: Fri, 7 Sep 2018 00:53:47 +0200
Subject: [PATCH] perf(router): prevent initializaing page twice

---
 core/src/components/route-redirect/route-redirect.tsx | 11 +++++++----
 core/src/components/router/router.tsx                 |  3 ++-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/core/src/components/route-redirect/route-redirect.tsx b/core/src/components/route-redirect/route-redirect.tsx
index 6ffd072fe5..257821e96e 100644
--- a/core/src/components/route-redirect/route-redirect.tsx
+++ b/core/src/components/route-redirect/route-redirect.tsx
@@ -1,4 +1,4 @@
-import { Component, Event, EventEmitter, Prop } from '@stencil/core';
+import { Component, Event, EventEmitter, Prop, Watch } from '@stencil/core';
 
 @Component({
   tag: 'ion-route-redirect'
@@ -39,13 +39,16 @@ export class RouteRedirect {
    */
   @Event() ionRouteRedirectChanged!: EventEmitter;
 
+  @Watch('from')
+  @Watch('to')
+  propDidChange() {
+    this.ionRouteRedirectChanged.emit();
+  }
+
   componentDidLoad() {
     this.ionRouteRedirectChanged.emit();
   }
   componentDidUnload() {
     this.ionRouteRedirectChanged.emit();
   }
-  componentDidUpdate() {
-    this.ionRouteRedirectChanged.emit();
-  }
 }
diff --git a/core/src/components/router/router.tsx b/core/src/components/router/router.tsx
index cecf5d09a9..16f52a8c6a 100644
--- a/core/src/components/router/router.tsx
+++ b/core/src/components/router/router.tsx
@@ -66,10 +66,11 @@ export class Router {
     console.debug('[ion-router] found nav');
 
     await this.onRoutesChanged();
+  }
 
+  componentDidLoad() {
     this.win.addEventListener('ionRouteRedirectChanged', debounce(this.onRedirectChanged.bind(this), 10));
     this.win.addEventListener('ionRouteDataChanged', debounce(this.onRoutesChanged.bind(this), 100));
-    this.onRedirectChanged();
   }
 
   @Listen('window:popstate')