Should do the trick

backend/api/media/media.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"math"
 	"net/http"
+	"os"
 	"strconv"
 
 	"fr.latosa-escrima/core"
@@ -52,10 +53,20 @@ func HandleMedia(w http.ResponseWriter, r *http.Request) {
 		}.Respond(w, http.StatusInternalServerError)
 		return
 	}
-	baseURL := utils.GetURL(r)
+	scheme := "http"
+	if r.TLS != nil { // Check if the request is over HTTPS
+		scheme = "https"
+	}
+
+	// Extract the host
+	host := r.Host
+	baseURL := fmt.Sprintf("%s://%s", scheme, host)
+	if os.Getenv("ENVIRONMENT") != "DEV" {
+		baseURL += "/api"
+	}
 	media = utils.Map(media, func(m models.Media) models.Media {
 		m.Author = nil
-		m.URL = fmt.Sprintf("%s%s/file", baseURL, m.ID)
+		m.URL = fmt.Sprintf("%s/media/%s/file", baseURL, m.ID)
 		return m
 	})