为什么在Azure中托管MVC时，MultipartFormDataContent不起作用？

Question

I am having issues with post a form to MVC, but only when the site is hosted inside of azure. When it is hosted locally inside of IIS OR inside of the compute emulator it works fine.

The request is posted, however the fields in the form are not being mapped to the action's parameters.

Is there something funky I need to do with the azure deployment?

MultipartFormDataContent data = new MultipartFormDataContent();
if (!String.IsNullOrEmpty(about))
{
    data.Add(new StringContent(about), "about");
}
data.Add(new StringContent(displayName), "displayName");
data.Add(new StringContent(name), "name");
data.Add(new StringContent(email), "email");
data.Add(new StringContent(phone), "phone");
data.Add(new StringContent(isPublic ? "true": "false"), "isPublic");
data.Add(new StringContent(isPrimary ? "true" : "false"), "isPrimaryProfile");
if (picture != null)
{
    byte[] imageBytes = await picture.GetBtyeFromFile();
    string imageString = Convert.ToBase64String(imageBytes);
    data.Add(new StringContent(imageString), "picture");
}

Uri uri = new Uri(url, UriKind.Absolute);
HttpResponseMessage responseMessage = await client.PostAsync(uri, data);

On the server side everything seems to be arriving correctly. Here is the body that I pulled out of the InputStream:

--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=displayName

display
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=name

Test Seller Account
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=email

email
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=phone

phone
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=isPublic

false
--614f8827-0cfe-48a6-a819-e6e9acdccae0
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name=isPrimaryProfile

true
--614f8827-0cfe-48a6-a819-e6e9acdccae0--

And are the headers:

ALL_RAW - Content-Length: 880
Content-Type: multipart/form-data; boundary="614f8827-0cfe-48a6-a819-e6e9acdccae0"
Host: [my server]

Answer 1

See: How to upload files to Asp.Net MVC 4.0 action running in IIS Express with HttpClient class included in .Net 4.0

Basically, you have to quote your param names:

data.Add(new StringContent(displayName), @"""displayName""");