Specify the application root in web.config handler mapping

I have an application with an HttpHandler that processes any requests for a .js file. I only want this handler to process *.js files that are requested in the root of the application.

The handler mapping looks like this:

<add name="HandleJS" path="*.js" verb="*" type="MyApp.JsHandler" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode,runtimeVersionv4.0" />

Currently, this handler processes ALL requested *.js files. Here is an example of the behavior I want.

This request would be processed by the handler:

http://localhost/myapps/approot/script.js

and this one would not be processed by the handler:

http://localhost/myapps/approot/dontProcessMe/script.js

I'd really like to avoid including the full absolute path in the handler path so I tried some other things first.

It doesn't look like the path property of the add element allows the use of the ~/ application root mechanism, so setting path="~/*.js" doesn't work.

I've also tried replicating the StaticFile handler that's built into IIS and doing something like this:

<add name="MyStaticFiles" path="*/*.js" verb="*" modules="StaticFileModule" />

or

<add name="MyStaticFiles" path="dontProcessMe/*.js" verb="*"开发者_如何学运维 modules="StaticFileModule" />

Both of which just return a blank response with an HTTP status of 200.

Help me Obi Wan Kenobi, you're my only hope.

---

May be inspect the RequestURL in the handler itself return the actual file if there is no processing needed?

public void ProcessRequest(HttpContext context)
{
    var applicationPath = context.Request.ApplicationPath;
    var pathAndQuery = context.Request.Url.PathAndQuery;

    var appRelativePath = pathAndQuery.Replace(applicationPath, "");

    var basePath = VirtualPathUtility.GetDirectory(appRelativePath);

    if (basePath != "/")
    {
        // load and return actual file
    }
    else
    {
        // custom logic
    }
}

---

No dice on path="/*.js" ?

It should be working with relative paths by default...