Modal, Draggable Dialog does not submit if field with focus is offscreen

Issue occurs in IE11. Seems to occur in IE10/IE9 document mode as well.

Reproduceable here: http://jsfiddle.net/1n5tv3dt/13/

Steps to reproduce:

• Click ‘Run’
• Click on the ‘Click me’ button. A dialog will appear
• Put text in the first field.
• Make the window small enough scroll bars appear
• Scroll the first field off the screen
• Click the ‘okbutton’ or ‘closemenow’ button
• The dialog does not generate an alert – it scrolls to the top.

Workaround:

Making the dialog non-modal or non-draggable fixes the issue.