After changes in Ionic App and Local Spring Boot Server, I see this error when switching to HTTPS instead of HTTP, when user tries to login:

[ERROR:ssl_client_socket_impl.cc(878)] handshake failed; returned -1, SSL error code 1, net_error -200

This is what I have tried so far:

• Generated a Self-Signed Certificate, placed in Spring Boot Server and made changes in application.properties

• Used the same certificate and placed in ionic android app.

• Handled CORS in Spring Boot Server

• Updated the network_security_config.xml to allow HTTPS requests.

• Created a res/xml/network_security_config.xml file:

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

In AndroidManifest.xml, reference this file:

<application    android:networkSecurityConfig="@xml/network_security_config"    ... ></application>

• updated the server url in Ionic App - using 10.0.2.2 as server address
• Rebuild app in Android Studio and launched in emulator,