I want to use jsPsychHtmlButtonResponse to display a .txt-file from a local folder on my computer. The reproducible code below does not work, while a very similar adaptation works for the display of images with jsPsychImageButtonResponse.

Does not work:

var text_display = {
  type: jsPsychHtmlButtonResponse,
  stimulus: text_files/test.txt,
  choices: ["Ready"],
};

Works:

var image_display = {
  type: jsPsychImageButtonResponse,
  stimulus: images_files/test.png,
  choices: ["Ready"],
};

Do you have any suggestions how to handle this problem?