pearInBody = getOwn(cannedData, 'canAppearInBody') || new Promise();
(function () {
  // Generates HTML for the experiment.
  function nestInBody(elementName) {
    return '<' + elementName + '></' + elementName + '>';
  }
  // Examines the resulting body to fold a single experiment into the result.
  function isNestedInBody(elementName, body, result) {
    result[elementName] = !!(
      body.firstChild && body.firstChild.nodeName.toLowerCase() === elementName
    );
    return result;
  }
  // When the ex