I'm testing with Chrome 29.0.1547.57 m.

I get an unnecessary scrollbars for all iframes (preview pane, settings iframe) - Larry skin.

I have fixed it by including on global level some js stuff:

// iframes $('iframe').height('99%');

NOTE: It happens without any plugins active. By default iframes have the following css properties:

element.style { width: 100%; height: 100%; }

It looks like height 100% is causing the issue.

Anyone else with such issues? Is it a known issue?