摘要 |
A background page script is executing on a device. A plurality of webpages are executing on the device. The plurality of webpages register with the background page script. An action generated by one of the plurality of webpages is cached in a database. In response to a determination that the device is in an online state and that the one of the plurality of webpages is no longer registered, the background page script retrieves the action from the database and transmits the action. |