error when doing copy and paste about materialnote

[djcors]

You can try modify .js
try this:
on callbacks dict change: onPaste: options.onPaste to onPaste: options.paste

layoutInfo.editable().data('callbacks', {
onInit: options.onInit,
onFocus: options.onFocus,
onBlur: options.onBlur,
onKeydown: options.onKeydown,
onKeyup: options.onKeyup,
onMousedown: options.onMousedown,
onEnter: options.onEnter,
onPaste: options.paste,
onBeforeCommand: options.onBeforeCommand,
onChange: options.onChange,
onImageUpload: options.onImageUpload,
onImageUploadError: options.onImageUploadError,
onMediaDelete: options.onMediaDelete,
onToolbarClick: options.onToolbarClick
});

this fix works for me