Fix uncaught error on IE8
Fix uncaught error on IE8

omridevk/mwEmbed,DBezemer/mwEmbed,abaylis/mwEmbed,safarijv/mwEmbed,bordar/mwEmbed,omridevk/mwEmbed,abaylis/mwEmbed,DBezemer/mwEmbed,FlixMaster/mwEmbed,bordar/mwEmbed,alexmilk/mwEmbed,kaltura/mwEmbed,alexmilk/mwEmbed,panda-os/mwEmbed,matsuu/mwEmbed,vladm3/mwEmbed,bordar/mwEmbed,joanpuigsanz/mwEmbed,alexmilk/mwEmbed,panda-os/mwEmbed,vladm3/mwEmbed,tanyaLibatter/mwEmbed,safarijv/mwEmbed,safarijv/mwEmbed,panda-os/mwEmbed,FlixMaster/mwEmbed,alexmilk/mwEmbed,SVSG/mwEmbed,tanyaLibatter/mwEmbed,kaltura/mwEmbed,abaylis/mwEmbed,matsuu/mwEmbed,joanpuigsanz/mwEmbed,panda-os/mwEmbed,FlixMaster/mwEmbed,vladm3/mwEmbed,kaltura/mwEmbed,tanyaLibatter/mwEmbed,kaltura/mwEmbed,SVSG/mwEmbed,slash851/mwEmbed,omridevk/mwEmbed,DBezemer/mwEmbed,safarijv/mwEmbed,tanyaLibatter/mwEmbed,slash851/mwEmbed,abaylis/mwEmbed,joanpuigsanz/mwEmbed,SVSG/mwEmbed,DBezemer/mwEmbed,joanpuigsanz/mwEmbed,omridevk/mwEmbed,slash851/mwEmbed,FlixMaster/mwEmbed,bordar/mwEmbed,slash851/mwEmbed,vladm3/mwEmbed,SVSG/mwEmbed,matsuu/mwEmbed,matsuu/mwEmbed