Trailing slash required with Undertow + custom root path

[dteleguin]

Describe the bug
When using quarkus-undertow in combination with custom root path, a trailing slash has to be appended to the app path. This is not required when using vert.x. Additionally, Java™ Servlet Specification assumes that the slash shouldn't be required:

A ServletContext is rooted at a known path within a Web server. For example, a
servlet context could be located at http://www.mycorp.com/catalog. All requests
that begin with the /catalog request path, known as the context path, are routed to
the Web application associated with the ServletContext.

Expected behavior
GET http://localhost:8080/foo => 200 OK (Welcome page or root resource)
GET http://localhost:8080/foo/ => 200 OK (ditto)

Actual behavior
GET http://localhost:8080/foo => 404 Not Found + "Resource not found" page
GET http://localhost:8080/foo/ => 200 OK

Configuration

quarkus.servlet.context-path = /foo

Environment (please complete the following information):

• Quarkus version or git rev: 1.3.1.Final

[sberyozkin]

Hi Stuart @stuartwdouglas is it somewhere in Quarkus or in Undertow itself where it is handled ?