Double Clicking Zoom in/out Button lets you see white background

[W1GZY]

Describe the bug
Clicking the zoom in/out button in right corner makes your game zoom further than what it is supposed and you will be able to see a white border around your base.

To Reproduce
Double click zoom out button

Expected behavior
Option A:
Not let it happen/delay clicking

Option B:
Extend background

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows
• Browser: no
• Using Flash Player Yes

Additional context