Ok thank you. I guess I need to go back to my other ticket where I'm not able to get USB DFU working on Linux but can on Mac. I think my issue is related to Linux having permissions set on the USB device for some reason. I get the following message in the browser when I use the WebUSB DFU demo here:
SecurityError: Failed to execute 'open' on 'USBDevice': Access denied.
https://devanlai.github.io/webdfu/dfu-util/
My linux user id is part of udev and dialup groups and I can use the USB connection when used as virtual port com in in the web browser.
