ionic-framework: Ionic Infinite Scroll position top very buggy in ios

Ionic version: (check one with “x”) (For Ionic 1.x issues, please use https://github.com/ionic-team/ionic-v1) [ ] 2.x [x] 3.x [ ] 4.x

I’m submitting a … (check one with “x”) [x] bug report [ ] feature request

Please do not submit support requests or “How to” questions here. Instead, please use one of these channels: https://forum.ionicframework.com/ or http://ionicworldwide.herokuapp.com/

Current behavior:

When i infinite scroll up, it infinite scroll many times if the user scrolls too fast upwards. If i disable infinite scroll, the ion-scroll-content will be set the enabled instead of disabled and this leaves a margin of height 84px.

Expected behavior:

Infinite scroll up should not executes many times regardless of how fast the user is scrolling. it shouldn’t leave a enabled state after enabled is false.

Steps to reproduce:

Related code:

https://github.com/yaozuwang/InfiniteScroll-Test

  <ion-infinite-scroll position="top" threshold="1%" (ionInfinite)="doInfinite($event)">
    <ion-infinite-scroll-content loadingSpinner="bubbles">
    </ion-infinite-scroll-content>
  </ion-infinite-scroll>

Other information:

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

cli packages: (C:\Users\Admin\AppData\Roaming\npm\node_modules)

    @ionic/cli-utils  : 1.9.2
    ionic (Ionic CLI) : 3.9.2

global packages:

    Cordova CLI : 7.0.1

local packages:

    @ionic/app-scripts : 2.1.4
    Cordova Platforms  : android 6.2.2 browser 4.1.0 ios 4.4.0
    Ionic Framework    : ionic-angular 3.6.0

System:

    Node : v6.7.0
    npm  : 3.10.3
    OS   : Windows 10