Unsafe Cross-Origin Links
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How to Fix
In order to pass this test, you have to update each link identified in this report, by adding a rel="noopener" or a rel="noreferrer" attribute or both:
rel="noopener" prevents the new page from being able to access the window.opener property and ensures it runs in a separate process.
rel="noreferrer" has the same effect but also prevents the Referer header from being sent to the new page.