Changing gofiber JSON encoder to set SetEscapedHtml(false).

gofiber.go

package main

import (
	"bytes"
	"encoding/json"
	"log"
	"os"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/cors"
)


func main {
  app := fiber.New(fiber.Config{
		JSONEncoder: func(val interface{}) ([]byte, error) {
			buf := new(bytes.Buffer)
			encoder := json.NewEncoder(buf)
			encoder.SetEscapeHTML(false)
			if err := encoder.Encode(val); err != nil {
				return nil, err
			}
			return buf.Bytes(), nil
		},
	})
  
	app.Use(cors.New())
  
  log.Fatal(app.Listen(":3000"))
}