Fix loading issue on IE11

[lucatacconi]

No description provided.

[lucatacconi]

Fix issue #83. As suggested i tried to invert lines xhr.open('GET', url); xhr.responseType = 'text';
It's OK on Chrome, Firefox, Chronium, Edge.. and it's OK also on IE11.
I didn't try the loader on Safari and Opera

[hzsrc]

+1

[FranckFreiburger]

thanks for your fix

[NineSu]

I tried it, but it didn't work