Flash cropped fullscreen in Chrome when developer tools are open

To see expected behaviour

1. Visit Humans - On Demand - All 4 in Chrome

2. Press on the fullscreen button of the player

Observe flash stage is scaled correctly.

To replicate problem

1. Visit Humans - On Demand - All 4 in Chrome

2. Open Developer Tools (Ctrl + Shift + I)

3. Press on the fullscreen button of the player

Observe flash stage is clipped + position incorrectly.

We are using fullScreenSourceRect to specify the portion of the stage to scale to fullscreen.

ie

resizePlayer(1280,720,true);

var screenRectangle:Rectangle = new Rectangle(0,0,1280,720);

stage.fullScreenSourceRect = screenRectangle;

stage.displayState = StageDisplayState.FULL_SCREEN;

Firefox with it's developer tools and IE11 and Edge with their equivalents are also ok.