Not working in chrom 64 Bit on Windows

When using easyModal on a chrome 64 Bit on Windows the modal and the panel are both at the same z index thus making the modal unusable.
Checking with dev tools showed a very large integer for the z-index of both elements.
As a workaround setting up a zIndex function solved the issue:
var easyModalOptions={
zIndex: function(){
return 10;
}
}

$(editModal).easyModal(easyModalOptions);

used version: v1.3.2