Allow cleartext and system/user certificates

Author: samuelchemla

app/src/main/AndroidManifest.xml

@@ -22,6 +22,7 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:localeConfig="@xml/locales_config"
+        android:networkSecurityConfig="@xml/network_security_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.MyApplication"

app/src/main/res/xml/network_security_config.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config xmlns:tools="http://schemas.android.com/tools">
+    <base-config cleartextTrafficPermitted="true" tools:ignore="InsecureBaseConfiguration">
+        <trust-anchors>
+            <certificates src="system"/>
+            <certificates src="user" tools:ignore="AcceptsUserCertificates" />
+        </trust-anchors>
+    </base-config>
+</network-security-config>