@Kyle i am trying the answer posted however it is not working Your answer

I am using CDN approach to load AdaptiveCards SDK JS using 3.0.5 version "https://unpkg.com/[email protected]/dist/adaptivecards.js"

Also tried with https://unpkg.com/[email protected]/dist/adaptivecards.js this version.

As pointed out in the documentation, there are breaking changes from version 2.0 and suggested to use SerializationContext.onParseElement as AdaptiveCard.onParseElement it has been removed. But still it is not hitting the handler.

Could you please check?

PS: it wasn't allowing me to post as comment hence i have posted it as query.