Stop catching scroll events when there is no zoom that

What do you think about not catching scroll events if there is no zoom that can be done. My use case is that i have 3 charts in a single page.

> **When i scroll down, i want the charts to zoom in until no zoom can be done and then scroll the content.**
> **When i scroll up, i want the charts to zoom out until no zoom can be done and then scroll the content.**

I thought about maybe adding a check if the current y axis value is equal to the limit and the delta is positive/negative.

handlers.js
```

function wheelPreconditions(chart, event, zoomOptions) {
// Before preventDefault, check if the modifier key required and pressed
if (keyNotPressed(getModifierKey(zoomOptions.wheel), event)) {
call(zoomOptions.onZoomRejected, [{chart, event}]);
return;
}

if (zoomStart(chart, event, zoomOptions) === false) {
return;
}

// Prevent the event from triggering the default behavior (e.g. content scrolling).
- if (event.cancelable) {
- event.preventDefault();
- }

+ if (event.cancelable && chartCanScroll(chart, event, zoomOptions)) {
+ event.preventDefault();
+ }

// Firefox always fires the wheel event twice:
// First without the delta and right after that once with the delta properties.
if (event.deltaY === undefined) {
return;
}
return true;
}

```