[Webkit-unassigned] [Bug 188796] New: Service Worker Crashes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188796

            Bug ID: 188796
           Summary: Service Worker Crashes
           Product: WebKit
           Version: Safari 11
          Hardware: Macintosh
                OS: macOS 10.13
            Status: NEW
          Severity: Major
          Priority: P2
         Component: Service Workers
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: greg_wardwell at sweetwater.com

Created attachment 347647

  --> https://bugs.webkit.org/attachment.cgi?id=347647&action=review

A crash log generated from Safari Service Worker crash

I work on the team running https://www.sweetwater.com where rolled out a Service Worker in February. Around July 14 we began receiving reports from company employees that they were experiencing Service Worker crashes with the message "Safari Service Worker quit unexpectedly". The pattern was that on each Mac Mini that the error occurred on, a random but consistent URL would yield a hard crash of the Service Worker process. While we were unable to duplicate the issue on our developer team, we looked at the evidence and tried pushing a version of our Service Worker with a cache expiry to production. That change, along with instructing employees to clear their site data for Sweetwater.com, seems to have (temporarily?) alleviated the issue.

I've attached an error log from one of those crashes to this but report.

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