* Fix JavaScript Console errors in /Comments sub-page of any article
- Make use of `document.body.contains()` to check if the element is present before trying to Add or Remove Event listeners or assign attribute values to the same.
* Implement recommendations for changes
- Switch String.match() to Regex.test() in order to have consistent Boolean return.
- Switch if(document.body.contains(element)) to if(element) as no need to check if the element is in visible context, only whether present or not.
* Implement recommendations for changes
- Switch String.match() to Regex.test() in order to have consistent Boolean return for isIOSDevice().
- Switch if(document.body.contains(element)) to if(element) as no need to check if the element is in visible context, only whether present or not.
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