Currently, in the process of changing Password, I have discovered that there is a Unikey/Vietkey character mark in the Password for Users in Vietnam Region. Because here User uses Unikey / Vietkey as the main, so when changing Password, there will be a character mark in it. The user will not detect that the password has been included with the character, the system will still change it without blocking the message with special characters in the password. As a result, many users who change their password will not be able to log in to the computer. Because on the computer will not show the mark.
Please give me a fix to block characters when entering Password on the website. Or develop a new version that turns off the characters in the Password in the Vietnam Region when using Unikey/Vietkey.