js function 'doToastrMessages' is called on each ajax request and appends the html body with "<div class="hidden alert ..."
The js function 'doToastrMessages' is called on each ajax request and appends the html body with "<div class="hidden alert ...".
-> The html body is growing with each ajax call. e.g. when sorting the generic list. This is not visible in the browser, but you can check it in the html source.