@fluid,
Whenever you move finger/pointer on the chart, the chart has to know if you are trying to scroll the page or interact with the chart. Hence we have implemented a behavior where if you hold the finger for a while on the chart, it captures the event and doesn’t scroll the page. On the other hand, if you move pointer/finger quickly without pausing, it allows you to scroll the webpage. Kindly check the behavior and let us know if it works as briefed here!
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Manoj Mohan
Team CanvasJS