[Webkit-unassigned] [Bug 213116] New: [IndexedDB] IDBTransaction.abort() fails to delete database on first connection open

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=213116

            Bug ID: 213116
           Summary: [IndexedDB] IDBTransaction.abort() fails to delete
                    database on first connection open
           Product: WebKit
           Version: Safari 13
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: charob at amazon.com

There is a use case where if I call abort from within IDBOpenDBRequest's upgradeneeded event, the abort operation does not rollback all changes and fails to delete the database. 

An example to reproduce the issue:

```
const dBOpenRequest = window.indexedDB.open('myDatabase', 1);

dBOpenRequest.onupgradeneeded = event => {
  const db = event.target.result;
  console.log(`Upgrading to version ${db.version}`);
  dBOpenRequest.transaction.abort();
};
```

After running this code there should be no database created since abort was called.

The behavior on Safari is not consistent with Chrome and Firefox. 

Reference: https://developer.mozilla.org/en-US/docs/Web/API/IDBTransaction/abort

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