tracer says to #ysitd
k.isDef(k.global.URL)&&k.isDef(k.global.URL.createObjectURL)?k.global.URL:k.isDef(k.global.webkitURL)&&k.isDef(k.global.webkitURL.createObjectURL)?k.global.webkitURL:k.isDef(k.global.createObjectURL)?k.global:null};k.fs.url.browserSupportsObjectUrls=function(){return