BackgroundFetchRegistration.uploaded

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

The uploaded read-only property of the BackgroundFetchRegistration interface returns the size in bytes successfully sent, initially 0.

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

Value

Examples

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

console.log(bgFetch.uploaded);

Specifications

Specification
Background Fetch
# dom-backgroundfetchregistration-uploaded

Browser compatibility

BCD tables only load in the browser