Fix read_file returning extra zero bytes at the end

src/browser/main.js

@@ -980,7 +980,7 @@
                     var filename = this.value.replace(/\/$/, "").split("/");
                     filename = filename[filename.length - 1] || "root";
 
-                    dump_file(uint8array.buffer, filename);
+                    dump_file(uint8array, filename);
                     this.value = "";
                 }
                 else 

src/browser/starter.js

@@ -797,10 +797,19 @@ V86Starter.prototype.read_file = function(file, callback)
     {
         fs.OpenInode(id, undefined);
         fs.AddEvent(
-            id, 
-            function() 
+            id,
+            function()
             {
-                callback(null, fs.inodedata[id]);
+                var data = fs.inodedata[id];
+
+                if(data)
+                {
+                    callback(null, data.subarray(0, fs.inodes[id].size));
+                }
+                else
+                {
+                    callback(new FileNotFoundError(), null);
+                }
             }
         );
     }