I can\'t render a view to a string and then redirect, despite this answer from Feb (after version 1.0, I think) that claims it\'s possible. I thought I was doing something w
Here is an alternative method for rendering a view to a string that never results in data being output to the response (therefore it should avoid your problem): http://craftycodeblog.com/2010/05/15/asp-net-mvc-render-partial-view-to-string/
To render a regular view instead of a partial view, you'll need to change "ViewEngines.Engines.FindPartialView" to "ViewEngines.Engines.FindView".