Firestorage downloading from download url doesn't download my file

Question

I am fetching a file via the download URL as described here

https://firebase.google.com/docs/storage/web/download-files

This is the code I used

      var xhr = new XMLHttpRequest();
      xhr.responseType = 'blob';
      xhr.onload = function(event) {
        var blob = xhr.response;
      };
      xhr.open('GET', this.$data._downloadURL);
      xhr.send();

And I get a response with status 200 and in the preview I can see the image. But it doesn't seem to be downloading in my browser. How can I do that?

I tried putting a cors json file in the storage as well but it doesn't seem to have any imact.

Answer 1

You have not told the script to do anything with the data. The part of your code that reads

xhr.onload = function(event) {
  var blob = xhr.response;
};

runs when the download is complete. Your data is in the blob variable. If you want to download it, you can try for instance the techniques described here inside the xhr.onload function.