Chronoforms v4 AdminTools and .htaccess

On all our sites I'm using Administration Folder Security with Admin Tools. Now I have the problem on one site (in frontend), that when you call up the forms Site (chronoforms V4), there comes the question to login in to the site. How can I avoid that??

The problem: http://www.miet-wc-jansen.de/online-anfrage-chronoforms?view=form

It seems to be, that the authorization must be for the capchta image:
http://www.miet-wc-jansen.de/administrator/components/com_chronoforms/form_actions/load_captcha/refresh.png
- But how can I avoid that?

Hi HotKeyHarry,

Can you whitelist the file in the Admin Tools?

Bob

I test it...

unfortunately no...

Hi Harry,

Then you can take an alternative, there are many, ReCaptcha, security question, honeypot/checktoken or server validation!

regards,
Max