Getting Unable to find a constructor error in WebGL

[falkartis]

I'm trying to De-serialize JSON string I'm getting from a web-service.
When I run the code in the Unity editor everything works fine, but when I make a WebGL build and I run it on a browser I'm getting this error.

Unable to find a constructor to use for type {0}. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute.

I found it in the CreateNewObject method inside the JsonSerializerInternalReader class.
I tried adding the [JsonConstructor] decorator to an empty/default constructor of my classes, but nothing changes.

[sidhants]

@falkartis @veblush any luck with this? I am stuck with the same issue on an il2cpp build for android.