Fix error in filer.js
Fix error in filer.js

fly19890211/codebox,lcamilo15/codebox,rodrigues-daniel/codebox,nobutakaoshiro/codebox,CodeboxIDE/codebox,smallbal/codebox,indykish/codebox,lcamilo15/codebox,nobutakaoshiro/codebox,quietdog/codebox,rodrigues-daniel/codebox,blubrackets/codebox,Ckai1991/codebox,fly19890211/codebox,CodeboxIDE/codebox,Ckai1991/codebox,rajthilakmca/codebox,ronoaldo/codebox,indykish/codebox,ahmadassaf/Codebox,code-box/codebox,kustomzone/codebox,ronoaldo/codebox,code-box/codebox,ahmadassaf/Codebox,LogeshEswar/codebox,listepo/codebox,smallbal/codebox,rajthilakmca/codebox,LogeshEswar/codebox,listepo/codebox,etopian/codebox,quietdog/codebox,etopian/codebox,blubrackets/codebox,kustomzone/codebox