It is a good pratice to add ref="noopener"
<a href="/some/domain" target="_blank" rel="noopener" />
Because when the new page is opened, in the new page can redriect parent page to another url, which contains security risk.
More about this, please check link.
[HTML5] a tag, rel="noopener"
原文地址：https://www.cnblogs.com/Answer1215/p/8520236.html