Wrong y-axis zoom behavior

[wielski]

Bug report

Codepen

https://codepen.io/wielski/pen/LYVgGbX

Explanation

• What is the behavior you expect?
  When zoom type is set to "y" chart should zoom only by y-axis

• What is happening instead?
  It shows right zoom selection, but chart is zooming by x-axis too

• What error message are you getting?
  No errors

[wielski]

I also tried to fix it with beforeZoom event, but I getting error "Cannot read property 'constructor' of undefined":

  public beforeZoom(options: ApexOptions): ApexOptions {
    if (this.zoomType === ZoomType.x) {
      return {
        xaxis: options.xaxis,
      };
    }

    if (this.zoomType === ZoomType.y) {
      return {
        yaxis: options.yaxis,
      };
    }

    return {
      xaxis: options.xaxis,
      yaxis: options.yaxis,
    };
  }

[junedchhipa]

You're correct, I confirm the bug.
It will be addressed soon.