Router1 "/get/test/abc/"
Router2 "/get/:param/abc/"

I tests these two routers with some requests:
/get/test/abc/ -> Router1
/get/xyz/abc/ -> Router2
/get/tt/abc/ -> 404(Expect Router2)
So, if there are some param starts with the prefix 't' in this example, it will not get the right router.

Originally posted by @Tevic in #2663 (comment)