After some investigation we are suspecting that this error is originated from New Relic agent and it is because of the next:
In session traces every time when this error is occurs it stays below some of the requests pointing to
In every page view where the indicated error is present we are observing the next error in browser’s console
The stack trace always is the same
Can you review please the CORS configuration of the
bam-cell.nr-data.net or maybe make a POST without credentials?