fix: check for heimdall token availability

backend/main.go

@@ -64,11 +64,11 @@ func PasswordGenerator(passwordLength int) string {
 }
 
 func register(res http.ResponseWriter, req *http.Request) {
-	cookie, _ := req.Cookie("heimdall")
-	// It won't throw any error.
-	// The service will be protected by heimdall
-	// Hence if this endpoint is being triggered then
-	// It means that cookie has to be present
+	cookie, err := req.Cookie("heimdall")
+	if err != nil {
+		http.Error(res, "No Heimdall session token received", http.StatusUnauthorized)
+		return
+	}
 	tokenString := cookie.Value
 
 	// Get email from JWT