Help sub-URIs in Context of type Proxy

[slowaways]

I created the configuration for External App in my Virtual Host:
Name * : NodeJS
Address * : localhost:3000

And the configuration for Context with type "Proxy"
URI *: /
Web Server *: [VHost Level]: NodeJS


Ok...
When acessing the sub-URI "/foo/bar"
The proxy point to localhost:3000/foo/bar and it's works fine!


--- The Problem ---
But when the configuration URI is modified to "/v1/":
Now, when any URI is accessed, for example: "/foo/bar"
The proxy point to localhost:3000/ (Sub-URI static):
Expected: The proxy point to localhost:3000/v1/foo/bar