UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1 Safari/605.1.15

Steps to reproduce the problem:
1. Access a website hosted e.g. under http://server1.com
2. The website performs an AJAX call to http://server2.com
3. The AJAX result contains a cookie which the browser silently discards

What is the expected behavior?
Chrome works as expected, but an improved traceability (e.g. by setting a log-level or developer/debugger-flag) for denied cookies (e.g. a message that "A cookie X has been denied because it originated from a different domain Y for the origin X") would greatly improve the search for problems.

What went wrong?
I was unable to trace why the cookie I thought I received correctly was rejected by Chrome.

Did this work before? N/A 

Chrome version: <Copy from: 'about:version'>  Channel: n/a
OS Version: OS X 10.13.4
Flash Version: