AdvantageHandler..::..SkipDefaultSerialization Property
Setting this to true will make the handler respond with exactly what the called method returned,
bypassing automatic serialization. If false, the handler will serialize the content based on the ContentType.
Namespace:
AdvantageCMS.Core.Common.BaseClasses.HandlerAssembly: AdvantageCMS.Core (in AdvantageCMS.Core.dll)

