var blockData = "f3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data heref3+AgICAgICAgICBgYGBgYGBgoKBgoGBgY... any huge chunk of text data here";
function go() {
  var r = JSON.stringify(blockData) + 'a';
  result = r.length == blockData.length+3;
}
go();