SparkViewEngine/spark — pull request #48 by chadly (2014-02-12 19:44:47+00:00)
Title: Adding implementation for PageInstrumentation in HttpContextWrapper

This fixes a NotImplementedException being thrown when trying to render a Razor page (via Html.Partial) from a Spark page. Razor expects PageInstrumentation to be implemented.

This link talks about it a little more in depth: http://forums.asp.net/t/1872001.aspx