Errors in image format (closes #165)

main.go

@@ -52,14 +52,7 @@ func main() {
 				code = e.Code
 			}
 
-			err = ctx.Status(code).Render("errors/error", fiber.Map{
-				"err": err,
-			})
-			if err != nil {
-				return ctx.Status(fiber.StatusInternalServerError).SendString("Internal Server Error")
-			}
-
-			return nil
+			return utils.RenderError(ctx, code)
 		},
 	})
 
@@ -77,14 +70,23 @@ func main() {
 		app.Get("/errors/429", func(c *fiber.Ctx) error {
 			return c.Render("errors/429", nil)
 		})
+		app.Get("/errors/429/img", func(c *fiber.Ctx) error {
+			return c.Redirect("/static/img/error-429.png")
+		})
 		app.Get("/errors/404", func(c *fiber.Ctx) error {
 			return c.Render("errors/404", nil)
 		})
+		app.Get("/errors/404/img", func(c *fiber.Ctx) error {
+			return c.Redirect("/static/img/error-404.png")
+		})
 		app.Get("/errors/error", func(c *fiber.Ctx) error {
 			return c.Render("errors/error", fiber.Map{
 				"err": "Test error",
 			})
 		})
+		app.Get("/errors/error/img", func(c *fiber.Ctx) error {
+			return c.Redirect("/static/img/error-generic.png")
+		})
 	} else {
 		app.Use("/static", filesystem.New(filesystem.Config{
 			MaxAge: 2592000,