Ping DOM element is a developer tools chrome extension. it's a free extension , it has 33 active users since released its first version, it earns an average rating of 5.00 from 1 rated user, last update is 3867 days ago.
The extension checks the given URL in the background periodically. It uses chrome's alarm API to do this so it does not consume to much resources. The frequency is around 1 request / minute. You can check for a specific element on the page too, doing this with the "elementToCheck" field, which accepts jQuery selectors. For example you can check the page http://www.bbc.co.uk/sport/0/football/ for having "Brighton" in the headlines. Where you should specify elementToCheck to div#more-new-headlines:contains(Brighton) . That is it. Enjoy using this tool!
You could download the latest version crx file or older version files and install it.
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You could find more help information from ping dom element support page.
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