Sent to the event page just before it is unloaded. This gives the extension an opportunity to do some cleanup. Note that since the page is unloading, any asynchronous operations started while handling this event are not guaranteed to complete.
注意：
If something prevents the event page from being unloaded, the
runtime.onSuspendCanceled
event will be sent and the page won't be unloaded.
browser.runtime.onSuspend.addListener(listener)
browser.runtime.onSuspend.removeListener(listener)
browser.runtime.onSuspend.hasListener(listener)
Events have three functions:
addListener(callback)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The
listener
argument is the listener to remove.
hasListener(listener)
Checks whether a
listener
is registered for this event. Returns
true
if it is listening,
false
否则。
callback
Function that will be called when this event occurs.
BCD tables only load in the browser
Listen for suspend events:
function handleSuspend() {
console.log("Suspending event page");
// handle cleanup
}
browser.runtime.onSuspend.addListener(handleSuspend);
注意：
This API is based on Chromium's
chrome.runtime
API. This documentation is derived from
runtime.json
in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
最后修改： , 由 MDN 贡献者