Scroll to top on route change issue on iOS

[oleynikd]

I'm building web app with Vue and have some strange behavior on iOS (Safari).
When route changes Safari won't scroll to top of the page (everything's fine on other platforms/browsers)

Has someone faced such problems?

Thanks.

[yyx990803]

The router doesn't automatically scroll to top when the route changes. You can do that in a global before hook though:

router.beforeEach(function (transition) {
  window.scrollTo(0, 0)
  transition.next()
})

[wonderbeyond]

Any elegant way to solve this problem?

[oleynikd]

Solution @yyx990803 proposed is pretty elegant... Why you don't like it?

[wonderbeyond]

Just first impression, I think it's OK now 😀
Thanks for your post.

[dung13890]

thanks! @yyx990803, i also have this problem.

[asantibanez]

Is this available in vue-router@next?

I managed to use this per component

export default{
        data(){
            return {}
        },

        created() {
            //Scrolls to top when view is displayed
            window.scrollTo(0, 0);
        }
    }

But wondering if it is a router configuration

[fnlctrl]

@asantibanez Checkout scrollBehavior https://github.com/vuejs/vue-router/releases

[pajtai]

Looks like the arguments for beforeEach are now to, from, next instead of just transition.

https://router.vuejs.org/en/advanced/navigation-guards.html#global-guards

@yyx990803's example would now be:

router.beforeEach(function (to, from, next) {
  window.scrollTo(0, 0)
  next();
})

[panayotoff]

Setting global scrollBehavior to the router works fine for me, but is there any elegant solution to animate the scrolling of the window within vue-router. I can set my animation in router.beforeEach function, but was just wondering...

[lukepolo]

@Panayotov

Use this

        scrollToTop: function (scrollDuration) {
                var cosParameter = window.scrollY / 2,
                    scrollCount = 0,
                    oldTimestamp = performance.now();

                function step(newTimestamp) {
                    scrollCount += Math.PI / (scrollDuration / (newTimestamp - oldTimestamp));
                    if (scrollCount >= Math.PI) window.scrollTo(0, 0);
                    if (window.scrollY === 0) return;
                    window.scrollTo(0, Math.round(cosParameter + cosParameter * Math.cos(scrollCount)));
                    oldTimestamp = newTimestamp;
                    window.requestAnimationFrame(step);
                }

                window.requestAnimationFrame(step);
            }

https://stackoverflow.com/questions/21474678/scrolltop-animation-without-jquery

[jesong]

The fix would scroll current page to top then do the route. That's not what people want if they have route animation.

[crobertsbmw]

@pajtai - Stupid question here. Where do I add that customization? I have a webpack application with my main.js as :

import Vuetify from 'vuetify'
import App from './App'
import router from './router'

Vue.use(Vuetify)
Vue.config.productionTip = false

new Vue({
  el: '#app',
  router,
  render: h => h(App)
})

I tried inserting into my main.js before the new Vue bit, but it didn't work.

[kallebornemark]

Just wanted to piggyback @jesong's comment and (re?)highlight this problem. Using beforeEach to scroll causes the page to scroll before any route animation is made, which doesn't look too good.

[iamaaron]

For those that want to apply the animation after the route has changed, or doesn't want that odd flicker of the view when using the scrollTop in a beforeEach. You are always welcome to use the afterEach hook provided by the router.

router.afterEach(() => {
  window.scrollTo(0, 0);
});

Reference: https://router.vuejs.org/en/api/router-instance.html