Override mime type with VS Web Dev Server

It might be too late, but for others who are getting this problem, here's how to fix it:

I solved it for mp4 videos, but it's the same principle for any mime, just reconsider your needs.

I assume you are using vs2012, create an IHttpHandler and copy this code into it:

public class Mp4Handler : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        context.Response.ContentType = "video/mp4";
        context.Response.BinaryWrite(File.ReadAllBytes(context.request.PhysicalPath));
        context.Response.End();
    }

public bool IsReusable{ get{ return false;}}
}

      

        
        
        
      

    

And don't forget to add the system.web file to your web.config file:

<httpHandlers>
    <add verb="*" path="*.mp4" type="[your-namespace].Mp4Handler" />
</httpHandlers>

      

        
        
        
      

    

Thus, you no longer need CassiniDev for mp4 to work correctly, CassiniDev is not evil and noteworthy - without it, I could not verify that the problem was in the first place.