Service worker registration soft updates happen too frequently. This is because the registration's last-update-check time is not updated when the newly downloaded script is identical to the previous one (common case).
Created attachment 332661 [details]
Comment on attachment 332661 [details]
Clearing flags on attachment: 332661
Committed r227796: <https://trac.webkit.org/changeset/227796>
All reviewed patches have been landed. Closing bug.