[Webkit-unassigned] [Bug 277615] New: IndexedDB failing with "UnknownError: Connection to Indexed Database server lost."

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=277615

            Bug ID: 277615
           Summary: IndexedDB failing with "UnknownError: Connection to
                    Indexed Database server lost."
           Product: WebKit
           Version: Safari 17
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: nisala at getbaseline.app

Created attachment 472056

  --> https://bugs.webkit.org/attachment.cgi?id=472056&action=review

Example of exception in Sentry, showing iOS 17.6

My Capacitor (WebView in iOS app framework) app's connection to IndexedDB will spontaneously close and fail to reopen, throwing this error: "UnknownError: Connection to Indexed Database server lost. Refresh the page to try again".

Although this bug was closed last month saying it was fixed in iOS 17.6 (https://bugs.webkit.org/show_bug.cgi?id=273827), I am still getting Sentry reports for iOS 17.6 with this error. I've attached a screenshot of the exception from Sentry, and am happy to provide any more information that I can. Based on my Sentry reports, the bug still seems to happen when the user uses the app, puts it into the background for a few hours, and then brings it back to the foreground to use it again. This is a critical bug -- it can't be fixed without the user force-closing and relaunching the app, and as a result, I'm losing users (as I'm sure are many others).

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