bug: ion-select (interface="modal") renders invalid ARIA structure: ion-list role conflicts with ion-radio-group

Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Ionic Framework Version

v8.x

Current Behavior

In ion-select-modal, the DOM structure includes:

• ion-content
• ion-list with role="list" automatically applied by Ionic
• Inside it, ion-radio-group with role="radiogroup"
• A list of ion-items representing the options each containing an with group "radio"

This produces an invalid semantic hierarchy because enforces a list container semantics, it must contain elements with role "listitem"

Expected Behavior

Option A (preferred)

Remove the ion-list wrapper entirely when rendering ion-radio-group, allowing the following hyerarchy inside

• ion-radio-group (role="radiogroup")
• ion-radio (role="radio")

Option B

If ion-list is required for styling/layout purposes, it must not impose role="list" semantics, or: Each radio should be wrapped in a container element with role="listitem" Ensuring valid nesting: role="list"

• role="listitem"
• role="radiogroup"
• role="radio"

Steps to Reproduce

• Create an ion-select with interface="modal"
• Provide multiple ion-select-option values
• Open the select modal
• Inspect DOM structure inside ion-select-modal, or analyze with accessibility tools

Observe: ion-list wrapping the ion-radio-group role="list" applied to the container

Code Reproduction URL

https://ionicframework.com/docs/api/select#modal

Ionic Info

Ionic:

Ionic CLI : 7.2.0 Ionic Framework : @ionic/angular 8.8.2 @angular-devkit/build-angular : 18.2.14 @angular-devkit/schematics : 18.2.14 @angular/cli : 18.2.14 @ionic/angular-toolkit : 11.0.1

Capacitor:

Capacitor CLI : 7.4.3 @capacitor/android : 7.4.3 @capacitor/core : 7.4.3 @capacitor/ios : 7.4.3

Utility:

cordova-res : not installed globally native-run : 2.0.1

System:

NodeJS : v22.15.0 (C:\NVMNodeLink\nodejs\node.exe) npm : 11.7.0 OS : Windows 10

Additional Information

Accessibility issue was highlighted by the use of axe DevTools