Why can the experiential applet with back-end only be used in LAN?
There is no public IP or domain name for filing. By default, the back-end function of the applet experience edition will connect to the server address set by the developer. The server has no public IP or domain name for filing, so it can only be used in the local area network and cannot be accessed through the public network. Applet Experience Edition is a version that developers use for testing and debugging when developing applets, and can be generated in developer tools.