Add fallback handlers

Former-commit-id: f7e9bd17076a10e1ed1702780d7ce9e89f00b592

_examples/routing/fallback-handlers/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"github.com/kataras/iris"
+)
+
+func main() {
+	app := iris.New()
+
+	// this works as expected now,
+	// will handle *all* expect DELETE requests, even if there is no routes
+	app.Get("/action/{p}", h)
+
+	app.Run(iris.Addr(":8080"), ctx.Method(), ctx.Path(), iris.WithoutServerError(iris.ErrServerClosed))
+}
+
+func h(ctx iris.Context) {
+	ctx.Writef("[%s] %s : Parameter = `%s`", ctx.Params().Get("p"))
+}
+
+func fallbackHandler(ctx iris.Context) {
+	if ctx.Method() == "DELETE" {
+		ctx.Next()
+
+		return
+	}
+
+	ctx.Writef("[%s] %s : From fallback handler", ctx.Method(), ctx.Path())
+}