[Webkit-unassigned] [Bug 157448] New: Modern IDB: IDBRequests that are stop()'ed don't notify the IDBServer of that fact

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157448

            Bug ID: 157448
           Summary: Modern IDB: IDBRequests that are stop()'ed don't
                    notify the IDBServer of that fact
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: beidson at apple.com

Modern IDB: IDBRequests that are stop()'ed don't notify the IDBServer of that fact

Scenario:
A ScriptExecutionContext has a pending IDBOpenDBRequest that is blocked because there's already another connection to the UniqueIDBDatabase.
The IDBServer is waiting to hear back from this request.
Then the user navigates away from the page (in the Document case) or the Worker thread is terminated (in the WorkerGlobalScope case).

The server will prevent all future access to that UniqueIDBDatabase because it doesn't know that IDBOpenDBRequest has been torn down.

This is definitely preventing us from enabled all existing Worker tests, and is likely the cause of at least *some* of the flakiness tracked in https://bugs.webkit.org/show_bug.cgi?id=154968

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