[Webkit-unassigned] [Bug 197050] New: IndexedDB: An internal error was encountered in the Indexed Database server

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=197050

            Bug ID: 197050
           Summary: IndexedDB: An internal error was encountered in the
                    Indexed Database server
           Product: WebKit
           Version: Safari 12
          Hardware: Unspecified
                OS: iOS 12
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mrschmidt at google.com

We have received reports from the users of the Firebase SDK for Firestore (see https://github.com/firebase/firebase-js-sdk) that they are seeing the following exception starting with iOS 12:

"An internal error was encountered in the Indexed Database server"

The user report states that bringing the Web app into the background and back into the foreground triggers this crash. More details can be found here: https://github.com/firebase/firebase-js-sdk/issues/1670

There are some other reports that this issue is related to storing Uint8Arrays in Object Stores that use auto-incrementing keys. While we do use auto-incrementing keys in Firestore, we do not store Uint8Arrays.

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