Rotating devices causes incorrect 90 degree rotation in Firefox (but not Chrome)

[Miserlou]

Using this: https://2djdovx6f3.execute-api.us-east-1.amazonaws.com/beta/4/

Going into WebVR mode and rotating the device works flawlessly with Chrome (except for a mystery white line), but in mobile Firefox it causes the two images to be rotated 90 degrees, rendering it kind of unusable.

[Manzoor231]

give me the code reference where its present give a full link @ngokevin