Hello, Wincairo build seems to be broken. I filed: https://bugs.webkit.org/show_bug.cgi?id=203791 <https://bugs.webkit.org/show_bug.cgi?id=203791> [wincairo] 'deref': is not a member of 'WebCore::ServiceWorkerContainer::jobResolvedWithRegistration::<lambda Can someone have a look? Thanks Aakash