jSignature(getData native) is empty

[TianqiHo]

There is my test code:

1. var sigData = $(".g-canvas").jSignature('getData','default');
2. $(".g-canvas").jSignature('clear');
3. $(".g-canvas").jSignature('setData',sigData);
4. var arrayData = $('.g-canvas').jSignature('getData', 'native');

the 'arrayData' is empty,where did i go wrong?

[FionaWong]

i has the same problem