Energy pointer gets lost when dragged out of the screen

[jaspearias]

Test Device

Hanson

Operating System

Windows 10

Browser

Internet Explorer

Problem Description

For phetsims/qa#397
In the Measure screen when dragging the energy pointer out on the edges of the screen it gets lost. You have to refresh the sim in order to be able to use the energy pointer again.

Visuals

https://drive.google.com/file/d/1GC1eyRbBW8ToDZ4Wgqlz6tJd56-ZOIAn/view?usp=sharing

[arouinfar]

@jessegreenberg is it possible to keep the ProbeNode within the visibleBounds of the sim?

[jessegreenberg]

Thanks for pointing out, that sounds good. Done in the above commit.