Error on opening download file link on android "Domain: undefined Error code -1"

• Site was opened
• Trying to open file download link
• File downloaded successfully
• Webview crashed with the next error message “Error loading page. Domain: undefined. Error Code: -1. Description: net::ERR_FAILED” I tried it for 2 different app builds and for different download file links.

One of the tested urls http://sources.codenet.ru/file/609/example.rar

<WebView source={{ uri: 'http://sources.codenet.ru/file/609/example.rar' }} />

To AndroidManifest added <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Environment:

• OS: Android

• OS version: 7

• react-native version: 0.61.3

• react-native-webview version: 7.4.3

• Working fine for Android 10 emulator

• Working fine for Android 7 emulator

• Crashing for Android 7 device

[sebgam]

I solved it by adding proyect/android/src/AndroidManifest.xml

android:usesCleartextTraffic="true"

[Enoooch]

If it doesn’t work by adding android:usesCleartextTraffic="true".

1. You can also add android:networkSecurityConfig="@xml/network_security_config" in your android/app/src/main/AndroidManifest.xml file.

2. Creating network_security_config.xml file in android/app/src/main/res/xml

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">add your domain like www.google.com</domain>
        <domain includeSubdomains="true">or local ip address 192.168.1.101</domain>

        <trust-anchors>
            <certificates src="system" />
            <certificates src="user" />
        </trust-anchors>
    </domain-config>

    <base-config cleartextTrafficPermitted="false" />
</network-security-config>

It may ignore some cert error.

Tested in

• “react-native”: “0.63.4”
• “react-native-webview”: “^11.2.0”

And I am still looking for a way to ignore all certificate error. Especially self-signed certificate.