allow Conversations to access user trust store

src/main/AndroidManifest.xml

@@ -21,7 +21,9 @@
 
     <uses-sdk tools:overrideLibrary="net.ypresto.androidtranscoder" />
 
+
     <application
+        android:networkSecurityConfig="@xml/network_security_configuration"
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"

src/main/res/xml/network_security_configuration.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <base-config>
+        <trust-anchors>
+            <certificates src="system" />
+            <certificates src="user" />
+        </trust-anchors>
+    </base-config>
+</network-security-config>