Add server script

bin/server

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+mix phx.server

config/config.exs

@@ -39,7 +39,7 @@ config :esbuild,
   version: "0.19.4",
   default: [
     args:
-      ~w(js/app.js --bundle --target=es2017 --outdir=../priv/static/js --external:/fonts/* --external:/images/*  --loader:.js=jsx),
+      ~w(js/app.js --bundle --target=es2017 --outdir=../priv/static/js --external:/fonts/* --external:/images/*),
     cd: Path.expand("../assets", __DIR__),
     env: %{"NODE_PATH" => Path.expand("../deps", __DIR__)}
   ]

lib/chess_web/views/live/board_live.ex

@@ -75,6 +75,8 @@ defmodule ChessWeb.BoardLive do
           _ ->
             handle_move(socket, file, rank)
         end
+      else
+        []
       end
 
     assign(socket, assigns)
@@ -121,6 +123,9 @@ defmodule ChessWeb.BoardLive do
             {:board, game.board},
             {:game, game}
           ]
+
+        {:error, _, _, _} ->
+          []
       end
     else
       [{:selected, nil}, {:available, []}]