HTML response from js.erb

[trustarun]

I am having below environment

Rails 4.2.5, ruby 2.2.2p95 , remotipart-1.2.1

The file upload successfully remotely i,e through Ajax, but je.erb response is HTML rather then JS

<textarea data-type="text/javascript" data-status="200" data-statustext="OK"> <p>alert('success!'); alert('submitted via remotipart') </p>

[mshibuya]

What's wrong with it?