javascript - Audio src saved on cookie but not playing -

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i have 5 songs in playlist , when click on next song see current src has saved on cookie when reload browser current src not auto playing.in browser console network tab - initiator i've found other . 

var song = document.getelementsbytagname('audio')[0]; var played = false; var runsrc = $.cookie("savesrc"); function update() {     if(!played){          if(runsrc){            song.addeventlistener("canplay",function(){runsrc&&(song.src=runsrc,runsrc=null);             });             song.play();             played = true;             }        else {             song.play();             played = true;             }         }         else {         $.cookie('savesrc', song.src);         }       }   setinterval(update,0);


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