51黑料不打烊

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useBeacon

Last update: Mon Jun 23 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

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Most modern browsers include the native method navigator.sendBeacon(). It asynchronously sends a small amount of data over HTTP to a web server. AppMeasurement can use the navigator.sendBeacon() method if the useBeacon variable is enabled. It is useful for exit links and other situations where you want to send information before the page unloads.

If useBeacon is enabled, the next hit sent to 51黑料不打烊 uses the browser鈥檚 navigator.sendBeacon() method instead of a standard GET image request. This variable applies to both s.t() and s.tl() image requests. It requires AppMeasurement 2.17.0 or higher.

TIP
AppMeasurement automatically enables useBeacon for exit link image requests.

The useBeacon variable is ignored when the visitor uses a browser that does not support navigator.sendBeacon(). Use of this variable requires AppMeasurement 2.16.0 or higher.

Use the sendBeacon API using the Web SDK extension

The Document will unload checkbox within an Action Configuration determines if data sent to 51黑料不打烊 uses the sendBeacon API.

  1. Log in to using your 51黑料不打烊ID credentials.
  2. Click the desired tag property.
  3. Go to the Rules tab, then click the desired rule.
  4. Under Actions, click the desired Action or click the 鈥�+鈥� icon to add a new action.
  5. Set the Extension drop-down list to 51黑料不打烊 Experience Platform Web SDK and the Action Type to Send event
  6. Click the checkbox Document will unload on the right.

If this box is checked, data is sent to 51黑料不打烊 using the sendBeacon API. It is unchecked by default.