Nobody replies, maybe because of I didn’t show any code. So...
My ".htaccess" file, which is located in the "/manager" subdirectory in Modx structure looks like this:
Options -Indexes
AuthName "Administrator's panel"
AuthType Basic
AuthUserFile .htpasswd
Require valid-user
My form is built with eForm 1.4.4 and looks like:
[!eForm? &formid=`ContactForm` &subject=`Test subject` &noemail=`0` &to=`my@email` &ccsender=`1` &vericode=`1` &tpl=`ContactForm` &report=`ContactFormReport` &invalidClass=`invalidValue` &thankyou=`form_thankyou` &protectSubmit=`1` &requiredClass=`requiredValue` &cssStyle=`ContactStyles`!]
Now, if I refresh a page containing the form above, user is asked for a password. And from my point of view such behaviour is wrong, as the ".htaccess" protection should only guard access to "/manager" path, not to the front page itself.