fix a preview issue
fix a preview issue

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