AliExpress runs two hidden WebAudio graphs from Alibaba anti-abuse scripts, and the zero-gain output keeps a Bluetooth audio path alive

Sources: laserphile write-up, HN discussion
Summary: The author traced a Bluetooth headset refusing to release its multipoint connection to an open AliExpress tab. The page runs two WebAudio graphs created by Alibaba anti-abuse scripts, and the graphs output at zero gain, which is inaudible but still holds the operating system audio path open. The browser tab mute control does not stop it, because the page has no media element to mute.
Why it matters: The tab mute control does nothing because there is no media element to mute, so a silent fingerprinting graph took ownership of a hardware audio path with no user-visible indication.