Plus (+) in MVC Argument causes 404 on IIS 7.0

user_406732 0
Viewed 6126

I have an MVC route that is giving me hell on a staging server running IIS. I am running Visual Studio 2010's development server locally.

Here is a sample URL that actually works on my dev box:

Root/CPUBoards/Full+Size

Results
Server Error404 - File or directory not found.
The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

Here is the complete behaviour I am seeing.

Localhost:

Root/CPUBoards/Full Size - Resolves
Root/CPUBoards/Full%20Size - Resolves
Root/CPUBoards/Full+Size - Resolves

Staging Server with IIS 7.0:

Root/CPUBoards/Full Size - Resolves
Root/CPUBoards/Full%20Size - Resolves
Root/CPUBoards/Full+Size - 404 Not Found Error.

Any ideas? I need to work with the encoded version for several reasons... won't waste your time with them.

HttpUtility.UrlEncode("Full Size") returns the version with the plus sing... Full+Size. This works on my dev box, but not on the staging server. I would prefer to just get it working on the server, since I already have everything else tested and working locally, but I have no idea where to start looking on the server configuration to get it to behave the same way.

Thanks!

asp.net-mvc-routing arguments asp.net-mvc-2
4 Answers

System.Web.HttpUtility.UrlPathEncode(string str) encodes a + to a %20

user_9415360

Totally agree with @bobince, the problem is in the wrong encoding to %2b instead of %20

Sadly HttpUtility.UrlEncode is misleadingly-named. It produces + in its output instead of %20, so it's really a form-URL-encoder and not a standard URL-encoder. Unfortunately I don't know of an ASP.NET function to “really URL-encode” strings for use in a path, so all I can recommend is doing a string replace of + to %20 after encoding.

this is the important part, which is to replace the + sign with %20

user_99557110
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