In-line error persists after input has been entered

[JoshuaYe]

Description

User causes an input field error to appear. When they enter a new input, there is not real-time checking to verify if the new input is valid. Thus, the error does not go away after the first time it appears.

Acceptance Criteria

User causes an input field error to appear. When they enter a new input, there is real-time checking to verify if the new input is valid. Thus, the error goes away once a valid input is entered.