In the script, we have not set the pan: { needTwoFingers: true } option and so in this example, when viewing it on a phone, we can get "trapped" because the full screen can be taken up by the graph and swiping just moves the graph, not the page.

So it's best to set the max-height, like we've done in this fiddle (or not as good, set needTwoFingers).

This is the graph of y = 0.25x²sin(10x)