SlickGrid autoHeight removes horizontal scrollbars with Frozen columns and column grouping

[AshaGanapathy]

https://github.com/6pac/6pac.github.io/blob/master/SlickGrid/examples/example-frozen-columns-and-column-group.html

In this example add some more column groups and enable autoHeight grid option as true
The horizontal scrollbars are removed, there is no way to move right.