Control use of the Serial API

Supported on: Microsoft Windows 7 or later

Registry

HKLM Software\Policies\Google\Chrome
HKCU Software\Policies\Google\Chrome

Options

DefaultSerialGuardSetting enum
  • Do not allow any site to request access to serial ports via the Serial API -> 2
  • Allow sites to ask the user to grant access to a serial port -> 3

Description

Setting the policy to 3 lets websites ask for access to serial ports. Setting the policy to 2 denies access to serial ports. Leaving it unset lets websites ask for access, but users can change this setting.