Clicking Jira Issue key within Bitbucket on Chrome does not load details with third-party cookies disabled

Issue Summary

On Chrome, if you keep third-party cookies disabled and click on a Jira Issue from Commit messages, Pull Requests etc, the expected behaviour is to open in a pop-up. However, it does not open and shows an error message that says there is no access for the user.

There is a problem with third-party cookies. Most browsers are disabling them completely with no workarounds. Asking customers to enable them is only a bandaid fix. You can find Google's Announcement here.

There was also a similar issue with Safari where cross-site requests were causing the issue and the fix was to open the links in a new tab - BCLOUD-17536.
I also found a very similar issue with Firefox - BCLOUD-21921 where I believe the cause is the same because I analyzed HAR files of when the ticket was blocked on Firefox and Chrome and I noticed that the same request was being blocked on both Browsers. On firefox, the workaround was to disable "Enhanced Protection".

Steps to Reproduce

1. Turn off third-party cookies in Chrome Settings
2. Go to any Repository on Bitbucket with a Jira key in the commit message or pull request.
3. Click on the key

Expected Results

The Jira issue should open in a pop-up within the page itself

Actual Results

An error message is shown that says the user has no access

Workaround

• The obvious workaround is to enable third-party cookies
• Ctrl/CMD click on the issue so that it opens in a new page