Jingdong payment SMS verification code error

Need to refresh. Every time an incorrect password is entered, the system needs to clear the password area, but the check code area has not been refreshed at this time, but the check code has been updated on the server side. At this point, if you fill in the original check code, the system will prompt that the check code is incorrect. The only solution is to refresh the web page and re-extract the check code picture. There are also cases. There is no capital lock key indicator on my notebook. Before entering the password, I have to open the notebook in the attachment and try to enter two characters to be sure. There is also the Chinese input method. If you open the Chinese input method to write English, you should pay attention to the setting of full angle and half angle. Full-width characters cannot be regarded as English passwords, and errors will occur.