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Important: The synchronous version of the IndexedDB API was originally intended for use only with Web Workers, and was eventually removed from the spec because its need was questionable. It may however be reintroduced in the future if there is enough demand from web developers.
IDBEnvironmentSync interface of the IndexedDB API will be implemented by worker objects.
||Provides a synchronous means of accessing the capabilities of indexed databases.
Note: Until the Indexed Database API specification is finalized, this attribute should be accessed as
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