Unable to get value of the property ‘_clearOnTimeout’: object is null or undefined

Version of SC: v9.1p_2014-09-30/Pro Deployment
Browser Used: IE9
Platform: Windows7

The problem:
I sometimes notice an error warning popup:
‘Unable to get value of the property ‘_clearOnTimeout’: object is null or undefined’

This appears to be coming from the ISC_DataBinding.js file, _timeoutTransaction function.
It usually occurs when leaving the browser for a longer time (more than 20mins), and accessing the browser again.

My question is, would it be possible to add a check inside this function? (ie – null/undefined check before calling ‘_clearOnTimeout’ on the transaction)

Thanks for your input.