Localhost:8100 could not be loaded because net::ERR_CLEARTEXT_NOT_PERMITTED

You can just add “0.0.0.0” in the /resources/android/xml/network_security_config.xml like bellow. Then it should works well.

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">localhost</domain>
        <domain includeSubdomains="true">0.0.0.0</domain>
    </domain-config>
</network-security-config>