IE 11 still doesn't support ES2015 features like Promises.
My default approach here is to use a Polyfill lib, include it in "externalJS" section of pbiviz.json and add "es2015" as lib to tsconfig.json.
As a result, the custom visual compiles, but the first use of a Promise results in an error:
new Promise((resolve, reject) => {
resolve();
});ERROR TypeError: Erlaubnis verweigert.
Die Eigenschaft "getOwnPropertyNames" eines undefinierten oder Nullverweises kann nicht abgerufen werden.
In english it's probably
ERROR TypeError: Permission denied.
The "getOwnPropertyNames" property of an undefined or null reference can not be retrieved.
However, when I write instead
new window["Promise"]((resolve, reject) => {
resolve();
});.. it works as expected.
What's happening here?
