You can download the first frame and then only download 4mb of the rest. If that's not the whole thing then don't download the rest. Or download up to 4mb and i

You can download the first frame and then only download 4mb of the rest. If that's not the whole thing then don't download the rest. Or download up to 4mb and if there's more then ignore it and just pull the first frame from the 4mb. Or if the content-length isn't set then assume it's over 4mb and only download the first frame. Granted there's extra complexity in parsing the first frame from a gif in real time.