DropZone-config.js

    Dropzone.options.uploadImages = {
	autoProcessQueue: false,
    maxFilesize: 2048,
    uploadMultiple: false,
    parallelUploads: 100,
    acceptedFiles: 'image/*',
    addRemoveLinks: true,
    dictRemoveFile: 'Remove',
    
    init: function() {
    var submitButton = document.querySelector("#submit-images")
        addImages = this; // closure

    submitButton.addEventListener("click", function(e) {
		e.preventDefault();
		e.stopPropagation();         
      addImages.processQueue(); // Tell Dropzone to process all queued files.
    });
    this.on("addedfile", function(file) {
      // Show submit button here and/or inform user to click it.
    });
    
    this.on("success", function() {
         if (this.getUploadingFiles().length === 0 && this.getQueuedFiles().length === 0) {
        window.location.href = 'http://localhost:8000/user/orders/manage/';
      }
    });
    }
    };