232304 2021-10-26 07:15:02 -0700 PWA doesn't work in offline mode intermittently - Restarting iPhone fixes it 2026-02-12 22:38:49 -0800 1 1 1 Unclassified WebKit Service Workers Safari 14 iPhone / iPad iOS 14 RESOLVED WORKSFORME InRadar P2 Normal --- 1 jander webkit-unassigned ggaren marcosc sihui_liu webkit-bug-importer oldest_to_newest 1808837 0 jander 2021-10-26 07:15:02 -0700 We have a PWA using a Service Worker, Application Cache and IndexedDB to provide offline functionality to our users. This is the same PWA as bug https://bugs.webkit.org/show_bug.cgi?id=232302 We've found the following behaviour in an iPhone XR running iOS 14.8: Intermittently, when using the PWA in offline mode, the standard Safari network error is displayed instead of our PWA's offline functionality. Restarting the phone brings back the PWA in offline mode, without the need to go online, along with all saved data - So unlike the bug above, it doesn't look like the data is being evicted. Our manifest.json file has "display" set to "minimal-ui", so the PWA displays in Safari instead of its own window. 1808941 1 webkit-bug-importer 2021-10-26 11:01:51 -0700 <rdar://problem/84671520> 2181121 2 marcosc 2026-02-12 22:38:49 -0800 Closing as works for me.