Failed to load resource: net::ERR_CLEARTEXT_NOT_PERMITTED

问题

I have gone through this question link, and I have made subsequent changes but still can't solve the problem. Still giving me the same error. Can someone please help me out. Thanks in advance Here is my piece of code from config.xml

 <widget id="com.farm.fork" version="0.0.1" 
    xmlns="http://www.w3.org/ns/widgets"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:cdv="http://cordova.apache.org/ns/1.0">


<platform name="android">
        <edit-config file="app/src/main/AndroidManifest.xml" mode="merge" target="/manifest/application" >
            <application android:usesCleartextTraffic="true" />
            <application android:networkSecurityConfig="@xml/network_security_config" />
        </edit-config>
        <resource-file src="resources/android/xml/network_security_config.xml" target="app/src/main/res/xml/network_security_config.xml" />

network_security_config.xml

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">localhost</domain>
    </domain-config>
</network-security-config>

AndoidManifest.xml

<?xml version='1.0' encoding='utf-8'?>
<manifest android:hardwareAccelerated="true" android:versionCode="1" android:versionName="0.0.1" package="com.farm.fork" xmlns:android="http://schemas.android.com/apk/res/android">
    <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true" />
    <uses-permission android:name="android.permission.INTERNET" />
    <application android:hardwareAccelerated="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:networkSecurityConfig="@xml/network_security_config" android:supportsRtl="true" android:usesCleartextTraffic="true">
        <activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode" android:label="@string/activity_name" android:launchMode="singleTop" android:name="MainActivity" android:theme="@android:style/Theme.DeviceDefault.NoActionBar" android:windowSoftInputMode="adjustResize">
            <intent-filter android:label="@string/launcher_name">
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:enabled="true" android:exported="false" android:name="com.google.android.gms.measurement.AppMeasurementService" />
        <service android:name="org.apache.cordova.firebase.FirebasePluginMessagingService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT" />
            </intent-filter>
        </service>
        <receiver android:name="org.apache.cordova.firebase.OnNotificationOpenReceiver" />
        <meta-data android:name="com.google.firebase.messaging.default_notification_color" android:resource="@color/accent" />
        <meta-data android:name="com.google.firebase.messaging.default_notification_channel_id" android:value="@string/default_notification_channel_id" />
        <meta-data android:name="firebase_analytics_collection_enabled" android:value="true" />
        <meta-data android:name="firebase_performance_collection_enabled" android:value="true" />
        <meta-data android:name="firebase_crashlytics_collection_enabled" android:value="true" />
    </application>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-feature android:name="android.hardware.location.gps" />
</manifest>

回答1:

As suggested by @Swayangjit I added base config tag in network_security_config.xml.

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>

  <base-config cleartextTrafficPermitted="true">
        <trust-anchors>
            <certificates src="system" />
        </trust-anchors>
  </base-config>

    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">192.168.43.147:3000</domain> <!--Ip address-->
        <domain includeSubdomains="true">192.168.43.147:3000/products</domain>
        <domain includeSubdomains="true">10.0.2.2 </domain>

    </domain-config>
</network-security-config>

After that, I was getting connection refused error because I was trying to connect to localhost by mobile which is not possible. Instead, you have to use your IP address. For ex: http://localhost:3000 won't work on the android device instead you have to use the IP address of local network like this

http://IP-addrees:3000. Note: You can find IP address through ipconfig command

回答2:

After a few days of struggle, this works for me, and I hope this also works for you. add this to your CONFIG.XML, top of your code.

<access origin="*" />
<allow-navigation href="*" />

and this, under the platform android.

<edit-config file="app/src/main/AndroidManifest.xml" 
   mode="merge" target="/manifest/application" 
   xmlns:android="http://schemas.android.com/apk/res/android">
     <application android:usesCleartextTraffic="true" />
     <application android:networkSecurityConfig="@xml/network_security_config" />
 </edit-config>
 <resource-file src="resources/android/xml/network_security_config.xml" 
 target="app/src/main/res/xml/network_security_config.xml" />

add the follow code to this file "resources/android/xml/network_security_config.xml".

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config cleartextTrafficPermitted="true">
        <trust-anchors>
            <certificates src="system" />
        </trust-anchors>
    </base-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">localhost</domain>
        <domain includeSubdomains="true">YOUR DOMAIN HERE/IP</domain>
    </domain-config>
</network-security-config>

回答3:

Try changing your network_security_config.xml

from:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
       <domain includeSubdomains="true">localhost</domain>
    </domain-config>
</network-security-config>

to:

<?xml version="1.0" encoding="utf-8"?>    
<network-security-config>
    <base-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">localhost</domain>
    </base-config>
</network-security-config>

notice the change in the tag domain-config to base-config

来源：https://stackoverflow.com/questions/59116787/failed-to-load-resource-neterr-cleartext-not-permitted