Posted over 3 years ago. Visible to the public. Repeats. Linked content.

Don't open user-supplied links with target="_blank"

This will give the target site full access to your Javascript environment through window.opener, if the target is on the same domain.

Even if the target site is on another domain, it still has some access and can for example manipulate window.location to perform a phishing attack.

You may use a rel="noopener" attribute to avoid this in modern browsers, except IE or Edge.

makandra has been working exclusively with Ruby on Rails since 2007. Our laser focus on a single technology has made us a leader in this space.

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Henning Koch
Last edit:
about 2 years ago
by Arne Hartherz
Keywords:
security
About this deck:
We are makandra and do test-driven, agile Ruby on Rails software development.
License for source code
Posted by Henning Koch to makandra dev
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