tracer says to #ysitda=k.labs.userAgent.util.extractVersionTuples(a),c=k.labs.userAgent.engine.getEngineTuple_(a);if(c)return"Gecko"==c[0]?k.labs.userAgent.engine.getVersionForKey_(a,"Firefox"):c[1];var a=a[0],d;if(a&&(d=a[2])&&(d=/Trident\/([^\s;]+)/.exec(d)))return d[1]}return""};k.labs.userAgent.engine.getEngineTuple_=function(a){if(!k.labs.userAgent.engine.isEdge())return a[1];for(var c=0;c<a.length;c++){var d=a[c];if("Edge"==d[0])returnat Thu, Jan 21, 2016 3:25 PM