Require triggered twice the ini file last time I used it (one month ago), I had to add code to check if it has already been executed before. Apparently it haves

Require triggered twice the ini file last time I used it (one month ago), I had to add code to check if it has already been executed before. Apparently it haves something to do with jQuery being already loaded before require; also I could not make it work on old browsers despite their claims that it does.