add middleware of cors

Gopkg.lock

@@ -1,6 +1,12 @@
 # This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
 
 
+[[projects]]
+  name = "github.com/gin-contrib/cors"
+  packages = ["."]
+  revision = "cf4846e6a636a76237a28d9286f163c132e841bc"
+  version = "v1.2"
+
 [[projects]]
   branch = "master"
   name = "github.com/gin-contrib/sse"
@@ -90,6 +96,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "69a38d98563bce4ac32cfa2afc36aa3298629f41568f13a4b6d3d18d97b22f67"
+  inputs-digest = "97fe6c44fd65faf279ffdc31df5bafbcb85cbf2945ee4cac49217b5186d2dc1b"
   solver-name = "gps-cdcl"
   solver-version = 1

Gopkg.toml

@@ -32,3 +32,7 @@
 [prune]
   go-tests = true
   unused-packages = true
+
+[[constraint]]
+  name = "github.com/gin-contrib/cors"
+  version = "1.2.0"

middleware/cors/cors.go

@@ -0,0 +1,30 @@
+package cors
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/gin-contrib/cors"
+	"github.com/gin-gonic/gin"
+)
+
+func Cors() gin.HandlerFunc {
+	config := cors.DefaultConfig()
+
+	config.AddAllowMethods(http.MethodDelete, http.MethodOptions, http.MethodPatch)
+	config.AddAllowHeaders("Authorization", "X-Require-Cookie")
+	config.AllowCredentials = true
+	config.AllowOriginFunc = func(origin string) bool {
+		if gin.Mode() == gin.DebugMode {
+			return true
+		}
+
+		if strings.Contains(origin, "links123.com") {
+			return true
+		}
+
+		return false
+	}
+
+	return cors.New(config)
+}