We've had a policy to always set
rel="noopener" for all external links.
However is that necessary if the external link is to a site in our own control?
Let's say we own both
milk.example.com - should we add those attributes when linking from one site to the other?
To me it feels unnecessary.
However, a colleague disagrees and says it's always a good idea to include at least
rel="noopener" when linking to ANY other site, no matter what.
EDIT: I also notice that Lighthouse will complain about external links without
rel="noopener". So the question is if it's just considered best practice to add that attribute for all external links even if you control the site being linked to.