Do ad blockers modify client-side scripts? I figured they just use some feature allowing extensions to block network requests. If they are modifying client-side scripts, then it might be tricky for a tool like this to allow some forms of modification without allowing other forms of modification.
Here's what ChatGPT says:
Most ad blocker browser extensions primarily work by intercepting and blocking network requests made by web pages to known advertising servers or domains. When a web page loads, it typically requests various resources such as images, scripts, and stylesheets from different servers. Ad blockers analyze these requests and compare them against a list of known ad servers or patterns commonly associated with advertising content. If a match is found, the ad blocker prevents the resource from loading, effectively blocking the ad from appearing on the page.
Some ad blockers also employ additional techniques such as element hiding, where they modify the Document Object Model (DOM) of the webpage to hide elements that are recognized as ads. This can include hiding divs, iframes, or other HTML elements that contain advertising content.
Overall, while there are variations in implementation, most ad blockers primarily rely on blocking network requests to known ad servers or domains, with some employing additional techniques to hide or remove ad content from web pages.