Reset Dropzone inside a modular window

I have a form inside a bootstrap theme modal block. The form contains several input fields and a Dropzone field, all of which send data to the server via ajax. After filling out the form, I obviously have to reset the form for the next set of inputs. I have successfully reset the form fields, EXCEPT the Dropzone image.

So now when I click the Submit button, after filling out the form, the data is entered. When you click the button to reopen the modal to add a new set, it still displays the previous image. I also need to be away.

I kept looking for a solution on SO and many other places. I couldn't find a solution. Any guidance is appreciated.

HTML:

<form enctype="multipart/form-data" id="addProductImageForm" class="dropzone dz-clickable" action="#">
  <div class="dz-default dz-message" ><span>Click here to upload Product Image</span></div>
</form>

      

        
        
        
      

    

JS:

Dropzone.options.addProductImageForm = {
paramName: "productImage", 
maxFilesize: 2,
maxFiles: 1,
uploadMultiple: false,
acceptedFiles: "image/*", 
dictDefaultMessage: "Click to Upload",
addRemoveLinks: true,
accept: function(file, done) { 
    if (file.name == "bg.png") {
        done("Naha, you don't.");
    }
    else {
        done();
    }
},
success: function(d, response, test) {
    var value = response.replace("int(0)", "");
    var value2 = value.replace(/(\r\n|\n|\r)/gm, "");
    $('#product_imageName').val(value2);
},
init: function() {
    this.on("maxfilesexceeded", function(file) {
        alert("No more files please!");
    });
}
};
$("#addProductImageForm").dropzone({url: "/path/to/upload_product_image.php"});

      

        
        
        
      

    

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var formData = {
  (input values here)
};

$.ajax({
    type: 'POST', 
    url: 'path/to/projectsAction.php',
    data: formData,
    encode: true
})
        .done(function(data) {
            var value3 = data.replace(/(\r\n|\n|\r)/gm, "");
            $('#project_productId').append('<option value="' + value3 + '" selected="selected">' + formData.product_name + '</option>');
            $("#addProductForm").find("input[type=text], textarea, select").val("");
            $("#addProductImageForm").html("");// THIS IS THE LINE THAT REMOVES THE THUMBNAIL. (From the answer given by xrcwrn)
            $('.close').click();
        });

event.preventDefault();