captivePortal

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.

Properties

captivePortal.canonicalURL

Return the canonical URL of the captive-portal detection page. Read-only.

Functions

captivePortal.getLastChecked()

Returns the time, in milliseconds, since the last request was completed.

captivePortal.getState()

Returns the portal state as one of unknown, not_captive, unlocked_portal, or locked_portal.

Events

captivePortal.onConnectivityAvailable

Fires when the captive portal service determines that the user can connect to the internet.

captivePortal.onStateChanged

Fires when the captive portal state changes.

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Firefox for Android
Safari on iOS
captivePortal
canonicalURL
getLastChecked
getState
onConnectivityAvailable
onStateChanged

Legend

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Full support
Full support
No support
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