WebUSB
From Trezor Wiki
WebUSB is an API available in Chrome used for securely providing access to USB devices from web pages.
WebUSB can be used to connect Trezor device to Trezor Wallet. However, to ensure smooth communication, it is recommended to use Trezor Bridge instead.
For more information about connecting your Trezor device to Trezor Wallet, see Setting up Trezor with Trezor Wallet.