Public bug reported:
A javascript-based web page works fine when accessed through Chrome,
fails to recognize that any devices exist when accessed from Chromium on
the same Unubtu 20.04 platform.
The code includes the following snippet:
const requestOptions = {
filters: [{ usbVendorId: 0x1881 }]
};
port = await navigator.serial.requestPort(requestOptions);
await port.open({ baudrate: 9600 });
writer = port.writable.getWriter();
reader = port.readable.getReader();
Under Chrome 84.0.4147.105 (Official Build) (64-bit), ttyACM0 device is
listed in the pop-up, is selectable, and can communicate. Under
Chromium 84.0.4147.105 (Official Build) snap (64-bit), the pop-up
contains only "No compatible devices found" message.
Experimental Web Features flag is enabled in both browsers.
** Affects: chromium-browser (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1890365
Title:
Web Serial fails to access local device
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