navigator.usb disappearing

[Benjamin Riggs]

I'm updating a device for a client to use WebUSB (RIP my chrome app). My client was just testing my updated webapp on their device (a 2011 MacBook Pro running 10.11) and ran into very odd behavior: Chrome connected successfully once, but then the usb interface disappeared from the navigator object. Rebooting/reinstalling did nothing. (They're currently upgrading their OS to a modern version).

What would cause Chrome to disable this API? Is there a 'magic' chrome URL that would display any info should this happen again? (Relatedly, is chrome://usb-internals/ broken? It doesn't seem to do anything.)

Thanks

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Benjamin Riggs

[Karel Bílek]

See

https://bugs.chromium.org/p/chromium/issues/detail?id=819197

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