Not sure but I may have stumbled upon a bug. There used to be a function called embedTaskLink in the dom/html/grid/task/task.php file. This was called in the build function in the JDomHtmlGridTaskToggle class. I believe in the latest Cook build, this embedTaskLink function was replaced by the embedLink function in the dom/html.php file but the reference to it is still in the JDomHtmlGridTaskToggle class.