How can I remove the drawing layer in leaflet.draw?

With leaflet.js using leaflet.draw.js after using the draw tool to draw one of the shapes on a custom map. I have a form that pops up which says save or cancel. If the user presses cancel, then I want the drawing to be deleted. For example I was drawing a rectangle.

Here is my current source

map.on('draw:created', function(e) {
    var layer = e.layer;
    var type = e.layerType;

    $("#add-drawing").fadeIn(500);

    featureGroup.addLayer(e.layer); // Adds rectangle

    $("a.cancelD").on("click", function() {
        $("#add-drawing").fadeOut(500);

        // THESE ARE THE METHODS I HAVE TRIED TO REMOVE THE RECTANGLE
        map.removeLayer(layer);
        featureGroup.removeLayer(layer);
        map.removeLayer(e);
        featureGroup.removeLayer(e);
    });     
});

None of this seems to be working. I can use the toolbox to remove the layer, but then I won't have any information submitted in the form I wish to submit.

How can I remove objects that I have drawn when pressing the cancel button on a form?

Since you're adding to featureGroup, which you say works, you should be removing from featureGroup too. Calling featureGroup.removeLayer(e.layer) or featureGroup.removeLayer(layer) (because layer holds a reference to e.layer) should work.

Here's a working example on Plunker: http://plnkr.co/edit/kPvYbH?p=preview

In my opinion the only conclusion can be that your event isn't firing or you're having some sort of weird scoping issue but that can easily be debugged:

$("a.cancelD").on("click", function() {
    console.log('Click fired!'); // Seeing this in your console, event works
    console.log(featureGroup); // Should return featureGroup instance, scope ok
    console.log(e.layer); // Should return polygon instance, scope ok

    // If all of the above works, this should too
    featureGroup.removeLayer(e.layer);
});