fix a preview issue
fix a preview issue

BobJavascript/webuploader,greatpie/WebUploader,Youraiseme/webuploader,orangemi/webuploader,orangemi/webuploader,profitfrl/webuploader,herohenu/webuploader,caizhifu/webuploader,leiallen/webuploader,jimmy-yao/webuploader,VioletLife/webuploader,WPG/webuploader,herohenu/webuploader,BobJavascript/webuploader,git-lt/webuploader,WPG/webuploader,orangemi/webuploader,Janson-Leung/webuploader,yuefengkai/webuploader,zhaosichao/webuploader,lovelykobe/webuploader,herohenu/webuploader,allsmy/webuploader,pjkui/webuploader,jimmywang1994/webuploader,fex-team/webuploader,WPG/webuploader,jimmy-yao/webuploader,webwlsong/webuploader,allsmy/webuploader,2betop/webuploader,Markxuxiao/webuploader,leiallen/webuploader,rwecho/webuploader,wxmfront/webuploader,ikenneth/webuploader,BobJavascript/webuploader,ouyang90/webuploader,Yumozhi/webuploader,NTASTE/webuploader,2betop/webuploader,greatpie/WebUploader,jimmywang1994/webuploader,pjkui/webuploader,Youraiseme/webuploader,NTASTE/webuploader,fex-team/webuploader,cnbin/webuploader,MienDev/webuploader,fex-team/webuploader,MienDev/webuploader,profitfrl/webuploader,WPG/webuploader,rwecho/webuploader,Janson-Leung/webuploader,admpub/webuploader,jimmywang1994/webuploader,baiyanghese/webuploader,rwecho/webuploader,Yumozhi/webuploader,admpub/webuploader,zhaosichao/webuploader,jimmy-yao/webuploader,ikenneth/webuploader,leiallen/webuploader,greatpie/WebUploader,Yumozhi/webuploader,fex-team/webuploader,Youraiseme/webuploader,jimmy-yao/webuploader,yuefengkai/webuploader,wangyun122/webuploader,tarobjtu/webuploader,orangemi/webuploader,BobJavascript/webuploader,BobJavascript/webuploader,wxmfront/webuploader,greatpie/WebUploader,xiexingen/webuploader,herohenu/webuploader,xiexingen/webuploader,pjkui/webuploader,caizhifu/webuploader,Markxuxiao/webuploader,rwecho/webuploader,wxmfront/webuploader,fengshao0907/webuploader,Youraiseme/webuploader,pjkui/webuploader,NTASTE/webuploader,fengshao0907/webuploader,wangyun122/webuploader,wxmfront/webuploader,pjkui/webuploader,xiexingen/webuploader,xiexingen/webuploader,baitongda/webuploader,tarobjtu/webuploader,git-lt/webuploader,ouyang90/webuploader,dianerdianer/webuploader,ikenneth/webuploader,tarobjtu/webuploader,meleslilijing/webuploader,BobJavascript/webuploader,Youraiseme/webuploader,baitongda/webuploader,admpub/webuploader,dianerdianer/webuploader,ouyang90/webuploader,fengjianjunstudy/webuploader,Janson-Leung/webuploader,dianerdianer/webuploader,Rudy24/webuploader,zhaosichao/webuploader,fex-team/webuploader,fengshao0907/webuploader,webwlsong/webuploader,zhaosichao/webuploader,dianerdianer/webuploader,fengshao0907/webuploader,ikenneth/webuploader,cnbin/webuploader,WPG/webuploader,wxmfront/webuploader,git-lt/webuploader,Markxuxiao/webuploader,2betop/webuploader,herohenu/webuploader,git-lt/webuploader,fengshao0907/webuploader,admpub/webuploader,rwecho/webuploader,allsmy/webuploader,baitongda/webuploader,jimmy-yao/webuploader,jimmywang1994/webuploader,Yumozhi/webuploader,admpub/webuploader,fex-team/webuploader,Markxuxiao/webuploader,Rudy24/webuploader,2betop/webuploader,leiallen/webuploader,xiexingen/webuploader,VioletLife/webuploader,fengjianjunstudy/webuploader,ikenneth/webuploader,lovelykobe/webuploader,Janson-Leung/webuploader,lovelykobe/webuploader,fengjianjunstudy/webuploader,greatpie/WebUploader,jimmywang1994/webuploader,git-lt/webuploader,webwlsong/webuploader,baiyanghese/webuploader,Markxuxiao/webuploader,baitongda/webuploader,herohenu/webuploader,jimmy-yao/webuploader,webwlsong/webuploader,pjkui/webuploader,fengshao0907/webuploader,yuefengkai/webuploader,Yumozhi/webuploader,fengjianjunstudy/webuploader,ouyang90/webuploader,dianerdianer/webuploader,greatpie/WebUploader,caizhifu/webuploader,ikenneth/webuploader,meleslilijing/webuploader,profitfrl/webuploader,webwlsong/webuploader,meleslilijing/webuploader,admpub/webuploader,fengjianjunstudy/webuploader,baitongda/webuploader,2betop/webuploader,yuefengkai/webuploader,yuefengkai/webuploader,MienDev/webuploader,tarobjtu/webuploader,allsmy/webuploader,wangyun122/webuploader,VioletLife/webuploader,leiallen/webuploader,Markxuxiao/webuploader,allsmy/webuploader,MienDev/webuploader,NTASTE/webuploader,baiyanghese/webuploader,WPG/webuploader,lovelykobe/webuploader,webwlsong/webuploader,Rudy24/webuploader,cnbin/webuploader,Janson-Leung/webuploader,cnbin/webuploader,ouyang90/webuploader,profitfrl/webuploader,Rudy24/webuploader,cnbin/webuploader,VioletLife/webuploader,yuefengkai/webuploader,profitfrl/webuploader,orangemi/webuploader,meleslilijing/webuploader,wangyun122/webuploader,ouyang90/webuploader,NTASTE/webuploader,leiallen/webuploader,cnbin/webuploader,meleslilijing/webuploader,MienDev/webuploader,fengjianjunstudy/webuploader,baiyanghese/webuploader,caizhifu/webuploader,zhaosichao/webuploader,Rudy24/webuploader,Youraiseme/webuploader,lovelykobe/webuploader,allsmy/webuploader,Yumozhi/webuploader,zhaosichao/webuploader,baiyanghese/webuploader,tarobjtu/webuploader,tarobjtu/webuploader,profitfrl/webuploader,wxmfront/webuploader,caizhifu/webuploader,jimmywang1994/webuploader,git-lt/webuploader,rwecho/webuploader,caizhifu/webuploader,xiexingen/webuploader,MienDev/webuploader,wangyun122/webuploader,baiyanghese/webuploader,Janson-Leung/webuploader,Rudy24/webuploader,meleslilijing/webuploader,VioletLife/webuploader,NTASTE/webuploader,wangyun122/webuploader,orangemi/webuploader,VioletLife/webuploader,baitongda/webuploader,dianerdianer/webuploader,lovelykobe/webuploader