Hi I am getting is error Unable to get property 'replace' of undefined or null reference at line below. The cls.name is coming undefined when I run the application in IE 9.

All other browsers my application is running fine.

export function IgComponent(args: any = {}) {

return function (cls) {
// get current annotations
let annotations = _reflect.getMetadata('annotations', cls) || [];
var sel = cls.name
//transform Uppercase to dash + LowerCase letter
.replace(/([A-Z])/g, (group) => { return "-" + group[0].toLowerCase(); })
//remove first dash and "-component"
.slice(1).replace("-component", "");