graphicek/server/middleware/cors.go

package middleware

import (
	"github.com/gin-gonic/gin"
)

func CorsMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		c.Header("Access-Control-Allow-Origin", "*")
		c.Header("Access-Control-Allow-Credentials", "true")
		// 2 hours
		c.Header("Access-Control-Max-Age", "7200")

		if c.Request.Method == "OPTIONS" {
			c.AbortWithStatus(200)
		}
	}
}