GET and POST calls fail to load resource - angularjs

Question

In my Ionic application, every $http POST or GET call gets blocked:
Failed to load resource: net::ERR_NAME_NOT_RESOLVED
It works fine in Ipv4 but shows the error when we select Ipv6 in the APNS settings in our phone networks. How should I continue?
Config.xml file
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<widget id="com.jio.smart.vehicle" version="0.0.1" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
<name>Name</name>
<description>
An Ionic Framework and Cordova project.
</description>
<author email="hi#ionicframework" href="http://ionicframework.com/">
Ionic Framework Team
</author>
<content src="index.html"/>
<access origin="*" subdomains="true"/>
<access origin="tel:*" launch-external="yes"/>
<access origin="cdvfile://*"/>
<allow-navigation href="*" />
<preference name="webviewbounce" value="false"/>
<preference name="UIWebViewBounce" value="false"/>
<preference name="DisallowOverscroll" value="true"/>
<preference name="android-minSdkVersion" value="16"/>
<preference name="loadUrlTimeoutValue" value="700000" />
<preference name="FadeSplashScreen" value="false"/>
<preference name="AndroidPersistentFileLocation" value="Compatibility"/>
<preference name="BackupWebStorage" value="none"/>
<preference name="SplashScreen" value="screen"/>
<preference name="android-windowSoftInputMode" value="adjustPan"/>
<preference name="AutoHideSplashScreen" value="false" />
<preference name="ShowSplashScreenSpinner" value="true"/>
<preference name="StatusBarOverlaysWebView" value="false"/>
<preference name="android-targetSdkVersion" value="20"/>
<hook type="before_run" src="hooks/appBeforeBuild.js" />
<feature name="StatusBar">
<param name="ios-package" value="CDVStatusBar" onload="true"/>
</feature>
<platform name="android">
<icon src="resources\android\icon\drawable-ldpi-icon.png" density="ldpi"/>
</platform>
<icon src="resources\android\icon\drawable-xhdpi-icon.png"/>
</widget>

Answer 1

Reason Why GET and POST calls are failed ?
You had missed cordova whitelist Plugin.It is required to make GET or POST request.
Installation Command
cordova plugin add cordova-plugin-whitelist
Navigation Whitelist
Controls which URLs the WebView itself can be navigated to. Applies to
top-level navigations only.
Quirks: on Android it also applies to iframes for non-http(s) schemes.
By default, navigations only to file:// URLs, are allowed. To allow
others URLs, you must add tags to your config.xml:
<!-- Allow links to example.com -->
<allow-navigation href="http://example.com/*" />
<!-- Wildcards are allowed for the protocol, as a prefix
to the host, or as a suffix to the path -->
<allow-navigation href="*://*.example.com/*" />
<!-- A wildcard can be used to whitelist the entire network,
over HTTP and HTTPS.
*NOT RECOMMENDED* -->
<allow-navigation href="*" />
<!-- The above is equivalent to these three declarations -->
<allow-navigation href="http://*/*" />
<allow-navigation href="https://*/*" />
<allow-navigation href="data:*" />
For Better understanding Please visit Official Documentation