UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3309.0 Safari/537.36

Steps to reproduce the problem:
1. run https://webvr.info/samples/03-vr-presentation.html
2. enter VR
3. go to dev tools Elements
4. hover over canvas id="webgl-canvas"
5. it is shown in its pre-VR position and pre-VR size reported

What is the expected behavior?
I would expect it to be shown according to its current size and position.
(In this particular example the current position is actually off screen as the #presenting-message is occupying the full screen height.  Remove the height:100% from the css and the canvas is mainly visible but still highlighted/reported wrong)

What went wrong?
The canvas highlight shows covers the entire window and reports size accordingly, that is where the canvas was before entering VR.

Did this work before? N/A 

Chrome version: 65.0.3309.0  Channel: canary
OS Version: 10.0
Flash Version: