Front validator.js and 'first-child' of null. - Joomla! Forum - community, help and support

hello there,

i've faced error in jquery (which doesn't block form operation) , says popular:
uncaught typeerror: cannot read property 'firstchild' of null

it comes core.js in remove messages cannot find #system-message-container , called validation script. thing module not using standard form submit.
as far know validation add onclick event button has 'validate' class, id doesn't matter in case.

jquery code below:

code: select all

(function($) {
   $(document).ready(function(event) {      
      $('.qformform button[type="submit"]').click(function(event) {
         event.preventdefault();
         
         // find thisbutton parent form
         var parentform = $(this).closest('form');
         if (parentform.length == 0)
         {
            alert("qform error: cannot find parent form.");
            return ;
         }
         
         var valid = document.formvalidator.isvalid($(parentform));         
         if (valid == false)            
            return ;         
                  
         qformmodule.onqsubmit($(parentform));                  
         
      });
   });   
})(jquery);


i see popups on input fields saying it's not validated, error drops console, if feel form submitted ajax calls.

could give me clue what's going on?

ps:
i've tested native joomla contact form , behaves same way. seems core.js should rather check if system-container valid element. shows after standard validation redirection, @ place fail.

this caused because system message container missing, add following code page:

code: select all

<div id="system-message-container"></div>

i hope helps.

derek