After deploying django app on heroku the url after every form submission or link in site been press resulting with "?next=" inserts into the URL address, I don't understand from where it comes and why heroku keep inserting them in a random way, running the application locally just working perfectly.
I've deleted the application from heroku and upload it again, the fault persists.
There's no http errors what so ever. If I keep submitting the form eventually will works.
For example: pressing the log button in the django admin console results with this URL: https://appname.herokuapp.com/admin/login/?next=/admin/login/admin/, hitting it quite a bit will finally make it work with the correct url display: https://mishnayot.herokuapp.com/admin/.
Switching from heroku postgres to AWS RDS postgres didn't help.
Help will be very appreciated.