400 Bad request error

Hi,

I am getting an error in the logs when a customer attempts to checkout and is directed to the login page first, the return URL contains %2Fonepagecheckout, this happens also with the registration page when it has a return url.

its not happening for all the customers but for one customer on daily basis.
website is deployed on azure app service.

https://domanname.com/register?returnurl=%2Fonepagecheckout

Any ideas?

What version of nopCommerce?

Mentioned in this past post (but no solution)
https://www.nopcommerce.com/en/boards/topic/90877/error-400-bad-request

New York wrote:

I am using nopcommerce  version 4.40.4