javascript - i want to add and Retrieve image from firebase with js -


i wrote code , don't know why telling me err_file_not_found

let database=firebase.database();   var filebutton = document.getelementbyid("filebutton");   var main = document.getelementbyid("main1");   var bildeurler =database.ref("bildeuler");  function largeurl(snap){      let url=snap.downloadurl;      bildeurler.child("rose").set(url);   }         filebutton.addeventlistener('change', function(e){              var file = e.target.files[0];              var storageref = firebase.storage().ref('kora/'+file.name);                storageref.put(file).then((largeurl));          });  function visbilder(snap){          let url=snap.val();             main.innerhtml+='<img src="${rose}">';       }     bildeurler.on("child_added",visbilder);


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