Determine the captive portal state of the user's connection. A captive portal is a web page displayed when a user first connects to a Wi-Fi network. The user provides information or acts on the captive portal web page to gain broader access to network resources, such as accepting terms and conditions or making a payment.
To use this API you need to have the "captivePortal" permission.
Return the canonical URL of the captive-portal detection page. Read-only.
BCD tables only load in the browser