• Cannot resend message if connection was lost

  There are mistakes in "
Add attachment
Sending...
"

I press send. 
My connection go down.

Observed result:
sending....

Expected result:
In error handler return button send to post.

URL from: http://www.checkio.org/mission/min-max/publications/jcg/python-3/first/
HTTP_USER_AGENT: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:28.0) Gecko/20100101 Firefox/28.0