Show page "loading"

I can't tell you exactly what the error is. But the logic is this: Show the base page with the loader (for example, trazer_alunosdaturma()) after doing AJAX to trazer_alunosdaturma_data() and insert the data. If you don't see the commented template, find the error. In general, everything is correct.

And before die() you write $this->load->view('v_notasturmax',$dados); but $dados not installed

Simple CI 4 project for beginners codeigniter-expenses ( topic )