/Web APIs

BackgroundFetchRegistration: downloaded property

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The downloaded read-only property of the BackgroundFetchRegistration interface returns the size in bytes that has been downloaded, initially 0.

If the value of this property changes, the progress event is fired at the associated BackgroundFetchRegistration object.



Logging this property to the console returns the number of bytes downloaded.



Browser compatibility

Desktop Mobile
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downloaded 74 79 No No 62 No No 74 No 53 No 11.0

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