using javascript, angular.js, and sql.js, how do I get a file object from a url?

I'm getting the URL to a sqlite db file on my server from the browser url using query string.

So in the app I have the file url.

Then I'm calling an angular $http.get function on that url.

This gives me the data in the file, but the library I'm using to read the data requires a file object.

Is there a way to create a file object from the paramiters inside $http.get? The parameters are data, status, headers, and config, I also have the file name.

I've tried constructing a blob but I keep getting an error saying "the database disk image is malformed." Here is the blob construction Inside the $http.get function:

            ...
            var blob = [];
            var blob2 = {fileName:null};
            $http.get(fileName).
              success(function (data, status, headers, config) {
                blob[0] = data;

                var theBlob = new Blob(blob, {name:fileName},{status:status},{headers:headers},{config:config}, {type : ''});
                var r = new FileReader();
                r.onload = function () {                    
                    var Uints = new Uint8Array(r.result);
                    db = new SQL.Database(Uints); 
                ...

I've also tried building the blob by adding the $http.get data, status, headers, and config parts as more parts of the blob[] array, and passing that to the new Blob constructor...

Any help would be really appreciated, thanks!