i am trying to load multiple angular apps (1.x, 4, 6 versions) using single-spa framework.

registerApplication('app1', () => loadApp('index.html path') , pathPrefix('/app1'));
registerApplication('app2', () => loadApp('index.html path') , pathPrefix('/app2'));

function loadApp(url) {
return new Promise((resolve, reject) => {

  //load all polyfills, vendor, main js files

   var script = document.createElement("script");
   script.type = "text/javascript";
   script.src = "polyfills-bundl.js";  
   document.head.appendChild(script);

});
}

app1 loads successfully, if i try to load 'app2' it doesn't work. it is the same way for app2.

Can you please help me what is the issue here?

Does single-spa-webpack-example supports to load different angular version apps?