Returning a static file from a route that matches all URLs behaves unexpectedly

I am not sure if this is a bug or intended behaviour. But the following code will not return the static file in case the "catchAll" function is called by url that is nested deeper i.e. calling http://localhost:8080/abc works while calling http://localhost:8080/abc/def doesn't work and will return "No Such Resource". The "catchAll" function gets called, but doesn't return the static file. Calling an explicitly declared url path that is nested such as http://localhost:8080/another/test however works.

from twisted.web.static import File

from klein import Klein

app = Klein()

@app.route('/<path:path>') # <- doesn't work if url is nested deeper
def catchAll(request, path):
    print(path)
    return File("./test.html")

@app.route("/test")    # <- works
def test(request):
    return File("./test.html")

@app.route("/another/test") # <- works
def test2(request):
    return File("./test.html")

app.run("localhost", 8080)

Start by running the provided Klein example and compare the /abc and /abc/def requests handled by catchAll, then compare them with the explicit /another/test route. Read the @app.route path handling and twisted.web.static.File interaction; done means nested URLs matching path:path return test.html consistently.