progress bar with ajax : problem with ci3 resolved :)

My guess is the ajax request creating the file is keeping the session lock until it finished and the ajax request for the progress bar is waiting for the session lock to be released. You need to call session_write_close(). Read this section in the user guide: http://www.codeigniter.com/userguide3/li...oncurrency

hello, Thanks you very much, that solved my problem.