github.com/gofiber/cors

CORS

Install

go get -u github.com/gofiber/fiber
go get -u github.com/gofiber/cors

config

Property	Type	Description	Default
Filter	func(*Ctx) bool	Defines a function to skip middleware	nil
AllowOrigins	[]string	AllowOrigin defines a list of origins that may access the resource.	[]string{"*"}
AllowMethods	[]string	AllowMethods defines a list methods allowed when accessing the resource. This is used in response to a preflight request.	[]string{"GET", "POST", "HEAD", "PUT", "DELETE", "PATCH"}
AllowCredentials	bool	AllowCredentials indicates whether or not the response to the request can be exposed when the credentials flag is true. When used as part of a response to a preflight request, this indicates whether or not the actual request can be made using credentials.	false
ExposeHeaders	[]string	ExposeHeaders defines a whitelist headers that clients are allowed to access.	[]string{}
MaxAge	int	MaxAge indicates how long (in seconds) the results of a preflight request can be cached.	0

Example

package main

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

func main() {
  app := fiber.New()

  app.Use(cors.New())

  app.Get("/", func(c *fiber.Ctx) {
    c.Send("Welcome!")
  }) 

  app.Listen(3000)
}

Test

curl -H "Origin: http://example.com" --verbose http://localhost:3000