ASP.NET + Angular + WebGL problem

Hi, i tried to insert unity player into angular component but when i try to load the page i have this error:

Invoking error handler due to
SyntaxError: expected expression, got keyword 'var'
ERROR TypeError: "UnityLoader[id] is not a function"

but in the Networking tab i have all the *.unityweb loaded correctly

i'm using unity-loader angular package like this:

import { UnityLoader } from 'unity-loader'

export class GameComponent implements AfterViewInit {
unityInstance: any

constructor() { }

ngAfterViewInit() {
var unityInstance = UnityLoader.instantiate("unityContainer", "Build/HTML5.json");

}
}