Partial scrollbar in checkDocument image

[chrisfinch]

I'm encountering a problem where tests fail on screenshot differences due to the generated image sometimes having a partial scrollbar in view and sometimes not.

The problem is intermittent and I cannot seem to nail down any circumstances in which it will or will not happen, despite playing around with pauses and the viewportChangePause parameter.

I'm running my suite remotely though browserstack when encountering this problem and it is so far occurring only in the ie9 browser that browserstack has.

Has anyone experienced a similar issue?

Thanks!