Chrome Version: 64.0.3282.186
OS Version: All

As a result of https://bugs.chromium.org/p/chromium/issues/detail?id=807304 any XSS auditor report that is sent cross-origin will be blocked. 

The fix was for a bug raised over 3 years ago, I'm not entirely sure it's valid, but has resulted in a useful feature being disabled: https://bugs.chromium.org/p/chromium/issues/detail?id=441275

We were in the process of testing a new capability on https://report-uri.com to collect XSS auditor reports for our customers and this change broke that and introduced errors in the consoles on websites using it. It's also worth nothing that youtube.com and t.co use cross-origin XSS auditor reporting along with other sites.

It'd be great if we could enable cross-origin reports again!