Fix IE11 preloading logic in hlsjs when playing live (#2895)
Fix IE11 preloading logic in hlsjs when playing live (#2895)


slash851/mwEmbed,slash851/mwEmbed,alexmilk/mwEmbed,kaltura/mwEmbed,kaltura/mwEmbed,tanyaLibatter/mwEmbed,tanyaLibatter/mwEmbed,panda-os/mwEmbed,alexmilk/mwEmbed,FlixMaster/mwEmbed,bordar/mwEmbed,kaltura/mwEmbed,FlixMaster/mwEmbed,kaltura/mwEmbed,alexmilk/mwEmbed,bordar/mwEmbed,panda-os/mwEmbed,bordar/mwEmbed,FlixMaster/mwEmbed,panda-os/mwEmbed,omridevk/mwEmbed,bordar/mwEmbed,omridevk/mwEmbed,omridevk/mwEmbed,alexmilk/mwEmbed,FlixMaster/mwEmbed,panda-os/mwEmbed,tanyaLibatter/mwEmbed,tanyaLibatter/mwEmbed,slash851/mwEmbed,omridevk/mwEmbed,slash851/mwEmbed