Drag & Drop HTML 5 jQuery: e.dataTransfer.setData() with JSON

Question

Here it is my dragstart:

dragstart: function(e) {
    $(this).css('opacity', '0.5');
    e.dataTransfer.effectAllowed = 'move';
    e.dataTransfer.setData('application/json', {
        id: $(this).attr('id'),
        header: $('header', this).text()
    });
},

I would like to pass some informations such id and text. My drop is:

drop: function(e) {
    var data = e.dataTransfer.getData('application/json');
    alert(data);
    $(this).attr('id', data.id);
    $('header', this).text(data.header);
},

But data is undefined, I can't access to my data. Is it the right way?

Thank's!

Answer 1

in drag start

var testjson = {name:"asd",tall:123};
e.dataTransfer.setData("text/plain",JSON.stringify(testjson));
e.dataTransfer.effectAllowed = "copy";

in drop

var data = e.dataTransfer.getData("text/plain");
console.log(JSON.parse(data));

and u will get

Object {name: "asd", tall: 123} 

in console.log