What is the function of the `rel="noopener"` attribute in links?

The rel="noopener" attribute is primarily used to enhance security when a link opens a new tab or window, usually in conjunction with the target="_blank" attribute. By including rel="noopener", the new page that is opened does not have access to the window.opener property of the original page. This is important because it prevents potential malicious activities, such as the new page redirecting the original page to a different URL or manipulating the content of the originating page.

This attribute is especially relevant in scenarios where links point to external sites. If the linked page were to execute harmful scripts, having access to the window.opener could allow it to exploit the original page in various ways, making rel="noopener" a vital security measure. By restricting access like this, developers can ensure that the newly opened page operates independently and cannot interfere with the original one.

The other options focus on different aspects, such as the action of opening links or affecting SEO, which are not the key functions of the rel="noopener" attribute. This specificity in purpose highlights why the correct answer centers on ensuring secure link handling.