http://msgpack.org/ bugs at "Try!" online demo

[hartwork]

Hi!

Please open the issue tracker for project https://github.com/msgpack/website. The live demo at http://msgpack.org/ has a bug that I cannot report there but would like to. To be concrete, the inputs

{"k": 111111111111111111111111111111111111}
{"k": 1111111111111111111111111111111111111}

both produce 81 a1 6b cf 00 00 00 00 00 00 00 00 for output (and no error display), so overflow detection seems missing.

Best, Sebastian