Goal=_blank implies rel=noopener | Stefan Judis Internet Improvement

Goal=_blank implies rel=noopener | Stefan Judis Internet Improvement
Goal=_blank implies rel=noopener | Stefan Judis Internet Improvement


If you wish to be internet citizen, you may concentrate on the goal="_blank" safety challenge.

Within the previous days, whenever you linked to a web site and needed to open a brand new tab with goal="_blank", the goal web site may entry your web site by way of window.opener. This implies briefly:

If window A opens window B, B.opener returns A.

If you have not heard of this habits, it is fairly wild as a result of it implies that focus on pages may test if window.opener is accessible and in that case change the placement of your web site with trivial JavaScript. That is also referred to as “reverse tab nabbing”.

if (window.opener) {
  window.opener.location = 'https://you-re-hacked.com';
}

Ooooff… And whereas it is unlikely, somebody may now use XSS to inject goal="_blank" hyperlinks into your web site and, when somebody clicks on them, change the URL of the unique web site (which is now within the background) to a malicious copy to fish credentials.

To stop this, you would use rel="noopener".


<a href="some-site.com" goal="_blank" rel="noopener">
  Some web site
</a>

However guess what? As a result of this habits appeared so off, browsers modified it. In 2024, everytime you use goal="_blank" rel="noopener" is implicit. Yay!

<a href="some-site.com" goal="_blank" rel="noopener">
  some web site
</a>



<a href="some-site.com" goal="_blank">
  some web site
</a>

However is that this new stuff? Nope.

But, the web is filled with rel="noopener" recommendation, so the legendary goal="_blank" challenge continues to reside on.

Let’s have a look at if this submit will assist make it disappear.

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