check for nullptr
check for nullptr

VioletLife/CefSharp,ITGlobal/CefSharp,AJDev77/CefSharp,ruisebastiao/CefSharp,rover886/CefSharp,illfang/CefSharp,zhangjingpu/CefSharp,VioletLife/CefSharp,rlmcneary2/CefSharp,Haraguroicha/CefSharp,jamespearce2006/CefSharp,rover886/CefSharp,jamespearce2006/CefSharp,dga711/CefSharp,Octopus-ITSM/CefSharp,yoder/CefSharp,dga711/CefSharp,gregmartinhtc/CefSharp,haozhouxu/CefSharp,Haraguroicha/CefSharp,zhangjingpu/CefSharp,VioletLife/CefSharp,Haraguroicha/CefSharp,twxstar/CefSharp,yoder/CefSharp,VioletLife/CefSharp,NumbersInternational/CefSharp,twxstar/CefSharp,gregmartinhtc/CefSharp,ruisebastiao/CefSharp,illfang/CefSharp,dga711/CefSharp,Livit/CefSharp,Octopus-ITSM/CefSharp,gregmartinhtc/CefSharp,battewr/CefSharp,jamespearce2006/CefSharp,yoder/CefSharp,twxstar/CefSharp,windygu/CefSharp,rlmcneary2/CefSharp,illfang/CefSharp,battewr/CefSharp,Haraguroicha/CefSharp,Octopus-ITSM/CefSharp,NumbersInternational/CefSharp,battewr/CefSharp,rover886/CefSharp,Octopus-ITSM/CefSharp,gregmartinhtc/CefSharp,haozhouxu/CefSharp,yoder/CefSharp,joshvera/CefSharp,Livit/CefSharp,AJDev77/CefSharp,rover886/CefSharp,ITGlobal/CefSharp,Livit/CefSharp,jamespearce2006/CefSharp,zhangjingpu/CefSharp,wangzheng888520/CefSharp,joshvera/CefSharp,haozhouxu/CefSharp,ITGlobal/CefSharp,joshvera/CefSharp,rover886/CefSharp,windygu/CefSharp,windygu/CefSharp,windygu/CefSharp,illfang/CefSharp,haozhouxu/CefSharp,AJDev77/CefSharp,ruisebastiao/CefSharp,jamespearce2006/CefSharp,Livit/CefSharp,NumbersInternational/CefSharp,joshvera/CefSharp,AJDev77/CefSharp,wangzheng888520/CefSharp,ruisebastiao/CefSharp,rlmcneary2/CefSharp,Haraguroicha/CefSharp,wangzheng888520/CefSharp,wangzheng888520/CefSharp,battewr/CefSharp,rlmcneary2/CefSharp,NumbersInternational/CefSharp,dga711/CefSharp,zhangjingpu/CefSharp,twxstar/CefSharp,ITGlobal/CefSharp