What is rel=”noopener” in WordPress?
rel="noopener" is an attribute that can be added to a link (<a>) in WordPress (or any other HTML document) to prevent the new page from being able to access the window object of the original page. This is done for security reasons, to prevent a potential attack known as "reverse tabnabbing". By adding rel="noopener" to an <a> tag, you are telling the browser to open the link in a new tab or window and to not provide the new page with access to the window.opener object, which could allow the new page to manipulate the original page.