Layout/LayerScale not affected by fullscreen scale

Link to .capx file (required!): dl.dropbox.com/u/2175584/Construct2Examples/Scalling.capx

Steps to reproduce:

1. Set-up project with size of 500,500 and layout of 500,500

2. Set Fullscreen in browser to 'Scale'

3. Observer the result of either LayoutScale or LayterScale when change different screen sizes.

Observed result:

LayoutScale or LayterScale are always one even though the layout is scaled.

Expected result:

Shouldn't the returned value be the amount the layout has been scaled by?

Browsers affected:

Chrome: yes

Firefox: yes

Internet Explorer: yes

Operating system & service pack:

Windows 8

Construct 2 version:

r120.2

Notes :

Maybe I am just trying to use it how it wasn't intended but I do require the ability to know how much the layout has been scaled by so I can centre objects by the pixels.

This is by design. Scaling the window does not affect the layout or layer scales; they are relative to the window.

OK, so how do you get the scale amount in letterbox mode?