Method createThumbnail

src/dropzone.js:923–948

(file, width, height, resizeMethod, fixOrientation, callback)

  }

  createThumbnail(file, width, height, resizeMethod, fixOrientation, callback) {
    let fileReader = new FileReader();

    fileReader.onload = () => {
      file.dataURL = fileReader.result;

      // Don't bother creating a thumbnail for SVG images since they're vector
      if (file.type === "image/svg+xml") {
        if (callback != null) {
          callback(fileReader.result);
        }
        return;
      }

      this.createThumbnailFromUrl(
        file,
        width,
        height,
        resizeMethod,
        fixOrientation,
        callback
      );
    };

    fileReader.readAsDataURL(file);
  }

  // `mockFile` needs to have these attributes:
  //