| 61<sup>1</sup> | 79<sup>1</sup> | No | No | No |
WebUSB API requires [secure context](https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts)(HTTPS).
Chrome will treat `localhost` as secure, but if you want to access a dev server running on another machine, follow the steps to add the domain name to allowlist:
1. Open `chrome://flags/#unsafely-treat-insecure-origin-as-secure`
2. Add the protocol and domain part of your url (e.g. `http://192.168.0.100:9000`) to the input box
3. Choose `Enable` from the dropdown menu
4. Restart browser
<sup>1</sup>: Chrome for Android is supported, Chrome for iOS is NOT supported.
## Use in Node.js
@@ -114,3 +108,14 @@ public async getDevices(
Get all connected and authenticated devices.
This is a convince method for `usb.getDevices()`.
## Note on secure context
WebUSB requires a [secure context](https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts)(HTTPS).
`localhost` is considered secure, so local development works. But to access a self-hosted server running on another machine, either add a certificate, or add the domain name to the allowlist on each client machine:
1. Open `chrome://flags/#unsafely-treat-insecure-origin-as-secure`
2. Add the protocol and domain part of your url (e.g. `http://192.168.0.100:9000`) to the input box
