On: AliExpress runs silent WebAudio fingerprinting that breaks Bluetooth multipoint

[jeffybefffy519]

I dont get how this fingerprints the browser? Are they able to read back the playback of audio somehow?

[emctech → jeffybefffy519]

The Web Audio API has the ability to extract frequency, waveform, and other data from an audio source, that source is generated at runtime on your device. A firefox developer did a further dive into what the WebAudio based fingerprinting can actually return in firefox. https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNod...