What tool(s) are you using?

• accessibility-checker-engine
• [ x] accessibility-checker
• karma-accessibility-checker
• rule-server
• boilerplates
• other

https://w3c.github.io/html-aria/#el-input-text-list

input type=text, search, tel, url, email, or with a missing or invalid type, with a list attribute
Authors SHOULD NOT use the aria-haspopup attribute on the indicated inputs with a list attribute.
Otherwise, any global aria-* attributes and any other aria-* attributes applicable to the combobox role.

implementation report