Function accept

src/options.js:396–398

* A function that gets a [file](https://developer.mozilla.org/en-US/docs/DOM/File) * and a `done` function as parameters. * * If the done function is invoked without arguments, the file is "accepted" and will * be processed. If you pass an error message, the file is rejected, and the err

(file, done)

   * This function will not be called if the file is too big or doesn't match the mime types.
   */
  accept(file, done) {
    return done();
  },

  /**
   * The callback that will be invoked when all chunks have been uploaded for a file.