Changes

The first step in dealing with ad blocking involves identifying when it is taking place. This involves placing bait content (essentially a page element known to be identified as an advertisement by an ad blocker) and some JavaScript detection code. The web page is then configured to call the detection code a short time after the web page has loaded. The detection code inspects properties of the bait content to verify if it is still visible. If the bait is hidden then the presence of an ad blocker is assumed.

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