Currently when updateUI is called on a Background Fetch, the new title is persisted to the database (as of https://chromium-review.googlesource.com/c/chromium/src/+/668541), but we don't yet update the title of the notification (because notifications aren't yet implemented :p). This issue tracks making the titles update.
Comment 1 by na...@chromium.org
, Jul 4Status: Started (was: Available)