Clear intervals test page
This page attempts to clear all intervals
intervalID from 1 to 1000 (inclusive). It’s used to demonstrate the issue of websites
clearing the intervals set by extension content scripts.
Install the demo Chrome extension and open the page console. You should
see that the “Interval…” messages the extension intends to log aren’t displayed, since the website
has cleared its interval. If you navigate to other pages under
testpages.kzar.co.uk you should see the
messages being logged. See https://crbug.com/860320.