can I limit crop area?

[dheo0]

I have a long height image

Is there a way to constrain the movement of the cropbox to fit the width or height of the image?

[fengyuanchen]

Try this:

window.addEventListener('DOMContentLoaded', function () {
  var image = document.querySelector('#image');
  var cropper = new Cropper(image, {
    viewMode: 3,
    dragMode: 'move',
    aspectRatio: image.naturalWidth / image.naturalHeight,
    autoCropArea: 1,
    restore: false,
    cropBoxMovable: false,
    cropBoxResizable: false,
    toggleDragModeOnDblclick: false,
  });
});