Scrolling bars should be added to resized window

STR:

1.Run JIRA
2.Click [Create Issue]
3.Click [Restore Down] icon to the top right-side on the IE browser window =>resized
5.Check information shown

AR:Scrolling bars are absent, impossible to view all information and to complete current action (Issue Creation)
See example '1.jpg'
ER:Scrolling bars should be added to resized window
Note:Issue is reproducible for all possible actions and boards