A web page that shows you everything the browser told it without asking
이 웹페이지는 사용자가 방문하자마자 브라우저가 자동으로 제공하는 위치, 시간대, 기기 정보, GPU, 폰트, 언어 설정 등 다양한 개인정보를 사용자 동의 없이 수집하고 보여준다. 이는 웹GL 지문인식, 브라우저 지문인식 등 표준 API를 활용한 합법적이지만 사용자 추적에 악용될 수 있는 기술이다. 페이지는 쿠키나 저장소를 사용하지 않고, 수집된 데이터는 클라이언트 내에서만 처리되며 서버에는 익명 이벤트 두 개만 전송한다. 이 사례는 웹 브라우저가 기본적으로 노출하는 정보가 얼마나 많은지, 그리고 사용자 동의 없이도 추적이 가능한 현실을 명확히 보여준다.
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What's wrong with this JavaScript JSON parse of numbers?
What's wrong with this JavaScript JSON parse of numbers losing precision. The JavaScript code parses JSON with large integers. In JavaScript numbers over 2^53 lose precision.
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Why does this JavaScript trim not removing all whitespace?
Why does this JavaScript trim not removing all whitespace. The JavaScript code uses trim on user input. In JavaScript trim only handles space tab newline not unicode spaces.
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What's wrong with this JavaScript BigInt mixing with Number?
What's wrong with this JavaScript BigInt mixing with Number in a calculator. The JavaScript code adds BigInt and Number. In JavaScript this throws and crashes the app.
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Why does this JavaScript Object is vs === for NaN?
Why does this JavaScript Object is vs === for NaN check. The JavaScript code uses === to detect NaN. In JavaScript Object.is is needed for NaN and negative zero.
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Why does this JavaScript Object keys on array?
Why does this JavaScript Object keys on array returning string indices. The JavaScript code uses Object.keys on an array. In JavaScript keys are string numbers and holes are skipped.
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What's wrong with this JavaScript setTimeout closure?
What's wrong with this JavaScript setTimeout closure in a loop. The JavaScript code creates timeouts in a loop with var. In JavaScript all callbacks see the final value.
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Why does this JavaScript Proxy trap missing?
Why does this JavaScript Proxy trap missing for operation. The JavaScript code uses Proxy but does not trap all operations. In JavaScript some property access bypasses the proxy.
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Why does this JavaScript eval in JSON parse?
Why does this JavaScript eval in JSON parse allowing code execution. The JavaScript code uses eval or Function to parse JSON. In JavaScript this executes any code in the string.
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