Test XHR Premature Timeout

This code will continually send an XMLHttpRequest to a host with a long timeout. Open the Console to monitor its progress, and the events surrounding its operation.

Demo code created in response to: https://bugs.chromium.org/p/chromium/issues/detail?id=716283#c3

• Check Interval is: msec
• Enter an address that won't answer: (good choice: http://123.45.67.89)
• Enter a timeout: msec

Counts of error status & and recent elapsed times