docs: function getPluginsOrPresetsFromScript(script, attributeName) {
    const rawValue = script.getAttribute(attributeName);
    if (rawValue === "") {
      // Empty string means to not load ANY presets or plugins
      return [];
    }
    if (!rawValue) {
      // Any other falsy value (null, undefined) means we're not overriding this
      // setting, and should use the default.
      return null;
    }
    return rawValue.split(",").map(item => item.trim());
  }