Click an element in iframe

Use this when you want to click on an element in an iframe. Change the following values.

selectorIframeHtml ：Selector string identifying the iframe containing the target element
selectorTargetElement ：Selector string identifying the target element

var selectorIframeHtml = "<TODO: REPLACE>";
var selectorTargetElement = "<TODO: REPLACE>";

/**
 * --------- Anything below this does not need to be changed. ---------------
 */

/**
 * Locate the iframe
 */
var iframeHtml = document.querySelector(selectorIframeHtml);

/**
 * Stop process if it does not exist
 */
if (!iframeHtml) {
    throw new Error(
      "Error: cannot find the iframe with selector (" + selectorIframeHtml + ")."
    );
}

/**
 * Locate the element
 */
var targetElement = iframeHtml.contentWindow.document.querySelector(selectorTargetElement);

/**
 * Stop process if it does not exist
 */
if (!targetElement) {
    throw new Error(
      "Error: cannot find the element with selector (" + selectorTargetElement + ")."
    );
}

/**
 * Fire a click event
 */
targetElement.click();