[Webkit-unassigned] [Bug 110792] New: IndexedDB: IDBObjectStore.index() doesn't report errors after deleteIndex()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=110792

           Summary: IndexedDB: IDBObjectStore.index() doesn't report
                    errors after deleteIndex()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jsbell at chromium.org


First reported at: https://code.google.com/p/chromium/issues/detail?id=177963

Basic repro:

1. Create a database with an object store and an index. Close the connection.
2. Open another connection with a higher version. During upgradeneed handling...
3. Use store.deleteIndex('indexname') to delete the index
4. Use store.index('indexname') to try and access it.

Expected: The last step should fire a DOMException of type "NotFoundError". 
Actual: An IDBIndex is returned

Critical to the repro is that from step 2 through step 3, store.index('indexname') is not called (e.g. to assert that the index is present before the delete). Otherwise, the exception is thrown as expected.

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