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feat: add client-side headless browser detection

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Skip events from headless Chrome (empty plugins, missing chrome
runtime), hidden browsers (zero outer dimensions), and known bot
viewports (1024x1024).
This commit is contained in:
Usman Baig
2026-03-17 10:17:21 +01:00
parent 01222bf0a9
commit d45d39aa60
1 changed files with 15 additions and 0 deletions
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15
public/script.js
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@@ -18,6 +18,21 @@
return; return;
} }
// * Skip likely bots: headless Chrome fingerprints and known bot viewports
var isChrome = /Chrome/.test(navigator.userAgent) && !/Edg/.test(navigator.userAgent);
if (
// * Headless Chrome has zero plugins (real Chrome always has at least 1; Firefox excluded — it legitimately reports 0)
(isChrome && navigator.plugins && navigator.plugins.length === 0) ||
// * Headless Chrome lacks the chrome runtime object
(isChrome && !window.chrome) ||
// * No outer window dimensions — headless or hidden browser
(window.outerWidth === 0 || window.outerHeight === 0) ||
// * Default headless viewport: exactly 1024x1024 (no real monitor uses this)
(window.innerWidth === 1024 && window.innerHeight === 1024)
) {
return;
}
// * Get domain from script tag // * Get domain from script tag
const script = document.currentScript || document.querySelector('script[data-domain]'); const script = document.currentScript || document.querySelector('script[data-domain]');
if (!script || !script.getAttribute('data-domain')) { if (!script || !script.getAttribute('data-domain')) {