IE 11 show null when there is no ad

[duytech]

Hi Zlatko,

I'm using this library in my project. I got this problem: IE 11 shows null when there is no ad.
Could you fix it?

Thanks,

[seeden]

strange :) really string null?

[duytech]

Yes,
I'm using the dimension [[970, 250], [970, 90]]
It happens when I resize browser to smaller width.