onchecking event

Event handler provided to see if the browser is in the process of checking for an update, or is attempting to download the manifest for the first time.

Syntax

HTML Attribute <element onchecking = "handler(event)">
Event Property object.onchecking = handler;
addEventListener Method object.addEventListener("checking", handler, useCapture)

Event handler parameters

handler [in]

Type: Function

Event handler

Remarks

If more than one event is triggered and the checking event is included, the next events may include noupdate, downloading, obsolete, or error.

Alternatively, you could use an anonymous delegate function such as


object.onchecking = function (e) { … }

where e is the cached event.

See also

ApplicationCache

 

 

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