I even include custom-elements-es5-adapter.js file to index.html, still it is not working in IE11. It looks like we need to configure something in rollup.config.js with babel.
@Balavaradh @davie-robertson Hi all, you just need to transpile the syntax down. The easiest way is using @babel/preset-env and set the target browsers. Just like in this example.
I even include custom-elements-es5-adapter.js file to index.html, still it is not working in IE11. It looks like we need to configure something in rollup.config.js with babel.