[Webkit-unassigned] [Bug 70041] New: IndexedDB: Transactions fail to abort if all requests throw exceptions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70041

           Summary: IndexedDB: Transactions fail to abort if all requests
                    throw exceptions
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jsbell at chromium.org
                CC: hans at chromium.org, dgrogan at chromium.org


Repro:

* Start a transaction
* Make a request against the transaction that raises an exception (e.g. a put() with an invalid key)
* Make no other requests against the transaction, let it execute

Expected:

* Transaction fires abort event

Actual:

* Transaction never fires abort, error or complete events

Initial investigation:

This appears to be caused by the path taken when requests are created but aborted early due to exceptions - a request is created, registered with the transaction, then marked for "early death". But the markEarlyDeath() method does not unregister it from the transaction; that doesn't happen until the request's destructor is called. Perhaps it should be unregistered immediately? Further investigation is needed, and we should understand why the transaction never completes.

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