[whatwg] XHR Level 2: Accurate Speed Measurement

[Jonas Sicking]

On Wed, Nov 23, 2011 at 12:12 PM, Rodger Combs <rodger.combs at gmail.com> wrote:
> Yes, I know about progress events. They're currently convenient for getting the status of the upload or download, but not for getting ETA or speed data. Calculations for these could be done in JS, but the UA could do so more accurately.

Why can the UA do so more accurately?

/ Jonas