BackgroundFetchRegistration: downloadTotal property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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

Note: This feature is available in Web Workers.

The downloadTotal read-only property of the BackgroundFetchRegistration interface returns the total size in bytes of this download. This is set when the background fetch was registered, or 0 if not set.

Value

Examples

Logging this property to the console returns the total size in bytes of this download.

js
console.log(bgFetch.downloadTotal);

Specifications

Specification
Background Fetch
# dom-backgroundfetchregistration-downloadtotal

Browser compatibility

BCD tables only load in the browser