254938 2023-04-03 13:13:49 -0700 REGRESSION (iOS 16.4): Our page crashes on page load due to service workers 2023-04-11 19:50:12 -0700 1 1 1 Unclassified WebKit Service Workers Safari 16 All iOS 16 RESOLVED FIXED BrowserCompat, InRadar P2 Critical --- 245425 1 jespertheend youennf jespertheend karlcow peter.elliott webkit-bug-importer youennf oldest_to_newest 1946291 0 jespertheend 2023-04-03 13:13:49 -0700 Since iOS 16.4 was released we started getting reports that our site crashes on page load. After trial and error I managed to find out that it was the service worker causing this. Though I'm not sure what exactly it is that makes our page crash, since other sites with a service worker seem fine. That said our service worker does not seem that complex: https://narrow.one/js/sw.js For now I have disabled the service worker in production using `navigator.userAgent.includes("AppleWebKit/605.1.15")`, but it can be enabled using /?serviceWorker=true. So the steps to reproduce are: 1. Visit https://narrow.one/?serviceWorker=true 2. Wait a few seconds for the service worker to install 3. Reload the page. I've verified these steps on both iOS/Safari, iOS/Chrome and macOS/Safari. I hope that helps. Let me know if you have any questions. 1946479 1 webkit-bug-importer 2023-04-04 02:11:53 -0700 <rdar://problem/107602025> 1946524 2 ap 2023-04-04 09:32:56 -0700 Reproduces on macOS too. 1946565 3 peter.elliott 2023-04-04 12:21:15 -0700 appears to reproduce in 16.5 beta on macOS, but not in safari technology preview 166 1946663 4 karlcow 2023-04-04 20:09:45 -0700 After running regression testing This has been regressed by https://github.com/WebKit/WebKit/commit/599d00ac6774a1c036faa6f6adf3f96fb95d337f Bug 245425 1946807 5 youennf 2023-04-05 13:04:15 -0700 Pull request: https://github.com/WebKit/WebKit/pull/12418 1947010 6 ews-feeder 2023-04-06 08:48:00 -0700 Committed 262666@main (96af04c5e6b2): <https://commits.webkit.org/262666@main> Reviewed commits have been landed. Closing PR #12418 and removing active labels. 1948116 7 ews-feeder 2023-04-11 19:50:12 -0700 Committed 259548.632@safari-7615-branch (e727241d7c3d): <https://commits.webkit.org/259548.632@safari-7615-branch> Reviewed commits have been landed. Closing PR #542 and removing active labels.