iis - Semantic urls with dots in .net

Question

I'm trying to make semantic urls for search pages, but if someone use a search finished in dot, the .net engine return a 404.

The request don't even get to the routing engine, so i think its something related to security or something like that.

For example, the stackoverflow routes also don't work in these case: https://stackoverflow.com/questions/tagged/etc.

Answer 1

If you are using .NET 4.0 and IIS 7+, you can set this flag in the system.web section of your web.config and it will be allowed:

<httpRuntime relaxedUrlToFileSystemMapping="true" />

I've tested it and it works. Haack has an explanation of it.