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Apr 07, 2012 07:06 AM|LINK
Web API uses a completely different filter infrastructure than MVC. As a result, you will not be able to use MVC's FilterAttributeFilterProvider class to change the behavior of Web API. Instead, you will have to create a provider implementing the Web API-specific
IFilterProvider interface. The provider implementation that is responsible for returning filters registered via filter attributes is the
Hope this helps.