建築画像がうまく取れていない #278

2020-09-23 16:21:09 jr-web03 jr_yamada_prod: 2020/09/23 16:21:09 [error] 4663#0: *85036976 open() "/home/jr/jr-yamada/public_html/img/build_start/building/undefined.png" failed (2: No such file or directory), client: 126.225.71.145, server: yamada.kaizoku-jolly.com, request: "GET /img/build_start/building/undefined.png HTTP/1.1", host: "yamada.kaizoku-jolly.com", referrer: "https://yamada.kaizoku-jolly.com/?M=Build&JRYE_SID=7Wreyq8omO7jMz4CthmG3y04p,OBRdCfag9tsHi,CO-446DlKQnrqiziMBuV3JTc&token=91447cf1c0125090b9a5814d89e26e8e73b9eb30"
2020-09-23 16:21:16 jr-web03 jr_yamada_prod: 2020/09/23 16:21:16 [error] 4662#0: *85037079 open() "/home/jr/jr-yamada/public_html/img/build_start/building/undefined.png" failed (2: No such file or directory), client: 126.225.71.145, server: yamada.kaizoku-jolly.com, request: "GET /img/build_start/building/undefined.png HTTP/1.1", host: "yamada.kaizoku-jolly.com", referrer: "https://yamada.kaizoku-jolly.com/?M=Build&JRYE_SID=7Wreyq8omO7jMz4CthmG3y04p,OBRdCfag9tsHi,CO-446DlKQnrqiziMBuV3JTc&token=91447cf1c0125090b9a5814d89e26e8e73b9eb30"
2020-09-23 16:21:24 jr-web03 jr_yamada_prod: 2020/09/23 16:21:24 [error] 4663#0: *85037141 open() "/home/jr/jr-yamada/public_html/img/build_start/building/undefined.png" failed (2: No such file or directory), client: 126.225.71.145, server: yamada.kaizoku-jolly.com, request: "GET /img/build_start/building/undefined.png HTTP/1.1", host: "yamada.kaizoku-jolly.com", referrer: "https://yamada.kaizoku-jolly.com/?M=Build&JRYE_SID=7Wreyq8omO7jMz4CthmG3y04p,OBRdCfag9tsHi,CO-446DlKQnrqiziMBuV3JTc&token=91447cf1c0125090b9a5814d89e26e8e73b9eb30"
2020-09-23 16:21:41 jr-web02 jr_yamada_prod: 2020/09/23 16:21:41 [error] 6228#0: *85292546 open() "/home/jr/jr-yamada/public_html/img/build_start/building/undefined.png" failed (2: No such file or directory), client: 106.171.73.75, server: yamada.kaizoku-jolly.com, request: "GET /img/build_start/building/undefined.png HTTP/1.1", host: "yamada.kaizoku-jolly.com", referrer: "https://yamada.kaizoku-jolly.com/?M=Build"
2020-09-23 16:23:02 jr-web05 jr_yamada_prod: 2020/09/23 16:23:02 [error] 18084#0: *85025827 open() "/home/jr/jr-yamada/public_html/img/island/object/object_undefined.png" failed (2: No such file or directory), client: 106.128.178.101, server: yamada.kaizoku-jolly.com, request: "GET /img/island/object/object_undefined.png HTTP/1.1", host: "yamada.kaizoku-jolly.com", referrer: "https://yamada.kaizoku-jolly.com/?M=Build"
2020-09-23 16:23:02 jr-web05 jr_yamada_prod: 2020/09/23 16:23:02 [error] 18085#0: *85025826 open() "/home/jr/jr-yamada/public_html/img/temp_build/build_step/undefined_undefined.png" failed (2: No such file or directory), client: 106.128.178.101, server: yamada.kaizoku-jolly.com, request: "GET /img/temp_build/build_step/undefined_undefined.png HTTP/1.1", host: "yamada.kaizoku-jolly.com", referrer: "https://yamada.kaizoku-jolly.com/?M=Build"

9/17から発生？
2020-09-17 17:11:51：確認できた最初のログ

corsエラー対応時に、ajaxがerror_codeだけ返すようになった影響で、
以下のようなコードの場合、jsonの中身がないにも関わらず通常処理が実行される。

if(エラー判定) { #ここのエラー判定はerror_codeをチェックしない
  #エラー処理
} else {
  #通常処理
}

jsonの有無を確認するように変更。

読み込み時に自動で発火するイベント全てで起こりうるなぁ。。。