Integrate Sentry on Knack Site?

I’ve just signed up for Sentry and wish to use it in a Knack.com app… I’m not exactly how to integrate it because the Sentry options and the Knack options don’t quite match. Knack says to load like this:

// The first parameter is an array of files to load.
// The second parameter is a function to execute after all the libraries have completed loading.
LazyLoad.js(['https://cdnjs.cloudflare.com/ajax/libs/datejs/1.0/date.min.js'], function () {
    alert('All my files have completed loading!');
});

But that doesn’t seem to allow for the crossorigin=anonymous option…
I’ve tried the following below

LazyLoad.js([src='https://js.sentry-cdn.com/<key>.min.js'], function() {
  Sentry.init({ dsn: 'DSN' });
});

And then how would I test it’s loaded and working?
Thanks.