"FileError is deprecated"

[bux]

Chrome 32.0.1700.102 shows the following console warning:

"FileError is deprecated. Please use the 'name' or 'message' attributes of DOMError rather than 'code'."

[paulcanning]

Chrome 44, Filer v 0.4.3 and I also get this warning.

[rodrigos0ares]

I'm wating this pullrequest to remove the usage of FileError and solve a error on Firefox 66.
#69

[michaelpeterlee]

#69 was invalid and I don't see another.

I've used this in production before:

// Prevent errors in browsers that don't support FileError; TODO: This is hokey
if ((self.FileError === undefined) || (FileError === undefined)) {
  var FileError = function() {};
  FileError.prototype.prototype = Error.prototype;
}