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Improve 'prevent-fetch' — add ability to set random response content #416
Description
Similar to - #199 (comment) but for prevent-fetch.
Also adding Content-Length header to response would be a good idea, related to - AdguardTeam/AdguardFilters#175797 and AdguardTeam/AdguardFilters#176137
Steps to reproduce:
- Add this rule:
example.org#%#//scriptlet('prevent-fetch', 'pagead2.googlesyndication.com')- Go to -
https://example.org/ - In browser console run:
(async () => {
const ads = await fetch('https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js');
const contentLength = (await ads.text()).length;
const contentLengthHeader = Number(ads.headers.get('Content-Length'));
if (!ads.ok || contentLength < 100 || contentLengthHeader < 100) {
alert('Ads are blocked!');
}
})();Alert will be displayed.
Activity
[-]Improve prevent-fetch — add ability to set random response content[/-][+]Improve 'prevent-fetch' — add ability to set random response content[/+]Yuki2718 commentedon Apr 13, 2025
Any news on it? japscan now checks if the response has at least 100 characters (they'll change in a few hours). This will also be useful for AdguardTeam/AdguardFilters#201832
AG-31638 Improve 'prevent-fetch' — add ability to set random response…