Thanks for the quick response Sunil. Checked with other browsers – no issues there. As a matter of fact there were no issues with older version of Chrome. This problem has been happening since I updated to Chrome 29.
We are actually evaluating CanvasJS in our environment (plan is to purchase a license within next month). For evaluation we have created a few charts with CanvasJS; things were going on smoothly with older version of Chrome (& other browsers), however, since last week or so everybody who is involved in evaluation is experiencing this problem. Again please note that this is intermittent. Could this potentially be a problem in integration with latest Chrome builds?