🐛 [Fix]: unhandle in strictmode

[wangjq4214]

Description

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Fixes #2044

Type of change

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• Bug fix (non-breaking change which fixes an issue)

Checklist:

• For new functionalities I follow the inspiration of the express js framework and built them similar in usage
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation - https://github.com/gofiber/docs for https://docs.gofiber.io/
• I have added tests that prove my fix is effective or that my feature works
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[ReneWerner87]

please provide or update some testcases for the strict mode

[wangjq4214]

If I have code and result as follows, I want to know if it is the expected behavior. @ReneWerner87

package main

import (
	"github.com/gofiber/fiber/v2"
)

func main() {

	app := fiber.New(fiber.Config{
		StrictRouting: true,
	})

	app.Use("/foo", func(c *fiber.Ctx) error {
		return c.SendString(c.Path())
	})

	app.Listen(":8888")
}

then request it:

$ curl 0.0.0.0:8888/foo
/foo
$ curl 0.0.0.0:8888/foo/
/foo/

[ReneWerner87]

If I have code and result as follows, I want to know if it is the expected behavior. @ReneWerner87

package main

import (
	"github.com/gofiber/fiber/v2"
)

func main() {

	app := fiber.New(fiber.Config{
		StrictRouting: true,
	})

	app.Use("/foo", func(c *fiber.Ctx) error {
		return c.SendString(c.Path())
	})

	app.Listen(":8888")
}

then request it:

$ curl 0.0.0.0:8888/foo
/foo
$ curl 0.0.0.0:8888/foo/
/foo/

Yes, because you use "app.Use" and it matches the prefix and not strict the whole path

Pls test it with "app.Get"