Tel link seems not work in latest Ionic for iOS

This’s quite strange result after I updated Ionic CLI and Cordova to latest version, then create a fresh project with a button that invoke following javascript statement:‘tel:1234’);

In good result, the app will invoke phone system of that OS, for example, Android.

But now, it works for Android, not on iOS.

I check about config.xml because in ionic-v1, this problem solved with cordova’s white list plugin. But now it seems not work.

Please tried to reproduce this result. I don’t sure about iOS 11.2.1 causes it or not.

here is my config.xml:

<?xml version='1.0' encoding='utf-8'?>
<widget id="" version="0.0.1" xmlns="" xmlns:cdv="">
    <description>An hot call app that used to make a call for emergency purpose in Thailand</description>
    <author email="" href="">Nextflow Training</author>
    <content src="index.html" />
    <access origin="*" />
    <allow-intent href="http://*/*" />
    <allow-intent href="https://*/*" />
    <allow-intent href="tel:*" />
    <allow-intent href="sms:*" />
    <allow-intent href="mailto:*" />
    <allow-intent href="geo:*" />
    <preference name="ScrollEnabled" value="false" />
    <preference name="android-minSdkVersion" value="16" />
    <preference name="BackupWebStorage" value="none" />
    <preference name="SplashMaintainAspectRatio" value="true" />
    <preference name="FadeSplashScreenDuration" value="300" />
    <preference name="SplashShowOnlyFirstTime" value="false" />
    <preference name="SplashScreen" value="screen" />
    <preference name="SplashScreenDelay" value="3000" />
   <!--  below is just a lot of icon -->

and here is ionic info:

cli packages: (/usr/local/lib/node_modules)

    @ionic/cli-utils  : 1.19.0
    ionic (Ionic CLI) : 3.19.0

global packages:

    cordova (Cordova CLI) : 7.1.0

local packages:

    @ionic/app-scripts : 3.1.6
    Cordova Platforms  : android 6.3.0 ios 4.5.4
    Ionic Framework    : ionic-angular 3.9.2


    Android SDK Tools : 25.2.5
    ios-deploy        : 1.9.2
    ios-sim           : 6.0.0
    Node              : v6.9.2
    npm               : 3.10.9
    OS                : macOS High Sierra
    Xcode             : Xcode 9.2 Build version 9C40b

Environment Variables:

    ANDROID_HOME : /Users/teerasejjiraphatchandej/Library/Android/sdk


    backend : pro

allready tried inAppBrowserPlugin?maybe that works…
Look in your logs, if its blocked by the whitelist or sth. else.

Thank you. After install inAppBrowser plugin, it work!

So we cannot use just simple anymore?
It worked before recently, like suggested here