responsibility: Code
Collection of success criterion where the responsibility falls under technical implementation and developer tasks.
WCAG 2.0, 2.1, 2.2
Level A
4.1.2 Name, Role, Value
The semantic meaning of every interactive element (form controls, links, headings, landmarks, tables, and so on) is correct, and each has an accessible name.
WCAG 2.0, 2.1, 2.2
Level AA
4.1.3 Status Messages
Messages like form errors and success pop-ups are communicated to assistive technology like screen readers.