Hacker News Reader

Can you read favicons from JavaScript or from the server side? I know you can set them from JS, don’t know about reading.

If so could you use steganography to encode a unique ID into the icon itself, then read it back to retrieve the fingerprint.

View on HN

This idea was indeed my first approach, but favicons on the client side cannot be loaded from the F-Cache via JavaScript, but are ALWAYS requested from the server via get-request, which fortunately thus does not allow fingerprinting. ~jonas

Makes sense, and I agree that is good behavior! Thanks for clarifying.

Reply on news.ycombinator.com