277044 2024-07-24 15:59:24 -0700 Referrer not sent when opening a new tab on same origin 2024-07-26 09:28:22 -0700 1 1 1 Unclassified WebKit Page Loading Safari Technology Preview Unspecified Unspecified RESOLVED DUPLICATE 234511 P2 Normal --- 1 desk webkit-unassigned beidson oldest_to_newest 2048190 0 desk 2024-07-24 15:59:24 -0700 In Safari, if you open a new tab (Cmd+click on a link) to a page in the same origin, the referrer is not provided, either in headers to the server, or in the JS context under `document.referrer`. In Chrome and Firefox, the referrer is available to new tabs on the same origin. I searched and couldn't find any bugs or documentation of this behaviour. I also tried disabling Safari's "Prevent Cross-Site tracking" but there was no change. Tested in Safari 17.4.1 and STP Release 199 (Safari 18.0, WebKit 19619.1.22.5). Reproduction steps: 1. Open https://news.ycombinator.com (Referrer-policy: origin) 2. Click a link to a comment thread 3. Run `document.referrer` in the developer console 4. Observe the result is "https://news.ycombinator.com" 5. Go back to https://news.ycombinator.com 6. Middle click on a link to a comment thread 7. Run `document.referrer` in the developer console 8. Observe the result is "" In Chrome and Firefox, in step 8, they provide a referrer. I would expect identical referrer behaviour whether a page is loaded via an in-page navigation, or via a new tab, or at the very least, sending the origin. 2048635 1 ap 2024-07-26 09:28:22 -0700 *** This bug has been marked as a duplicate of bug 234511 ***