Hasty Treat - Target=_blank security issue? What's the deal with noopener and noreferrer?

In this Hasty Treat, Scott and Wes talk about noopener and noreferrer and why you should use them with links that have blank targets.
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Show Notes 03:35 - What’s the big deal?
If you have a link that is target="_blank" you should add rel=“noopener” and rel=“noreferrer”
Retail Me Not uses it
Valid use cases: Same domain change the page from a popup
Cross domain changing page data

Example: https://mathiasbynens.github.io/rel-noopener/

05:39 - Why doesn’t the browser just fix it?
Safari did - You can use rel=“opener” to allow it
Firefox did
Chrome hasn’t yet
https://twitter.com/HugoGiraudel/status/801475801397030912

10:48 - Does this hurt SEO?
It breaks analytics of the recipient site, turning a referral visit from your site into direct traffic, unless the link has UTM or similar tracking parameters. If you have a site where passing traffic offsite is part of the business model, links need an affiliate id instead.
Links @argyleink

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