In FF DevTools Network the request line has a grey status circle & has no status number. The response tab is empty. In Firebug the status shows as aborted and I read somewhere this means the call was aborted by the browser (would mean server not an issue?).
- Began about the time Firefox 46 became the production version (April 26).
- Users do not experience these failures in Chrome.
- Users are located around the world (not a local issue).
- The requests being aborted seem to be random, occurs in less than 1% of requests.
- No other request is active or made when the failure happens.
- I have not noticed any GET failures.