ENFOLD Autoresponder doesn't work with http:// or apostrophe (') in the message

Dear Kriesi Team,

I’m using the latest version of ENFOLD and integrated a contact from with your “Contact Form” shortcode.
The good news: The contact form works very well. Great job!
The bad news: It has a few unexpected behaviours:

1) Using the contact form with autoresponder and captcha activated crashes Internet Explorer 11.0.2.
After the submit, the “Your message has been sent” is displayed correctly, and any attempt to continue to browse on the same domain leads to IE crashing. It seems to work in Chrome.

2) If the autoresponder message contains any http:// or any ‘ e.g. as in the world “don’t” or “We’ll do this” than no autoresponder message is sent.
The site owner still gets the normal notification email (which is great), but it would be good if you could mention in a comment that any http:// and ‘ need to be avoided. Alternatively you may add a feature to escape the apostrophe do allow for links and a text like “We’ll get back to you!”

Other than that I wish there would be an easier way to add Dear Firstname, to the autoresponder. I’ve seen some posts on how to do it, but I wonder if those changes in the code get lost when the next update is installed.

For now, I can work with the above and I hope that my post helps other to avoid the frustration when searching why the autoresponder doesn’t work. It generally does, but if it doesn’t then remove any special characters from your autoresponder message for now.