[Plugin: Contact Form 7] "Successfully sent" doesn't appears if on_sent_ok enabled (f

Hi, another thanks for great plugin.

Find an issue:
If add
on_sent_ok: "pageTracker._trackPageview('shershidsky.ru/thank-you.html');"
into additional settings, the strange behavior of conformation message. Any messages like “Failed”, “Spam” appear, but “Good”. Even if to embed custom [response] shortcode it doesn’t affect appearing “Good” message.

After I deleted “on_sent_ok” from the additional settings it works just fine.

So, I have only two choices: track form sending or be polite to visitors to say them “It’s OK with your message”

Could you please help to resolve the issue?

Cheers