Ajax giving error 302

Question

I’m calling the same Javascript functions in separate forms on the same page.

When I call the function of the first form, the function that executes an ajax is executed normally.

When calling the same function in the second form, ajax is not executed by returning error 302 Moved Temporarily.

I’m breaking my head to know why the error and so far I could not know because calling the function in the first form works normally without error.

Problem is running on the second flame in the second form, and in that second form calls the function in the same way as the first form.

$.ajax({
          url: "/busca.php",
          type:"POST",
          data: { "valor": valor, "combo" : combo, "categoria" : categoriab, "estado" : estadob, "cidade" : cidadeb, "bairro" : bairrob, "etapa" : etapa},
          cache: false,
          success: function(response) {
              var resultado = JSON.parse(response);                    
              $("#"+resultado.etapa+"").html(resultado.combo);             
          },
          error: function() {
              alert(" Não foi possível completar a solicitação! ");
          },
          complete: function() {
              //direcionar para algum lugar                    
          } 
      });