fix(dcc upload): fix drag and drop in IE

        e.preventDefault();

      },

      dragEnter(e) {

        if (e.dataTransfer.types.includes("Files")) {

        // the first two checks are for IE

        if (e.dataTransfer.types.length > 0 && e.dataTransfer.types[0] === "Files" || e.dataTransfer.types.indexOf("Files") >= 0) {

          e.preventDefault();

          this.lastTarget = e.target;

          this.dropActive = true;