try more

Author: adolgachev

src/material/chips/chip-listbox.ts

@@ -69,7 +69,6 @@ export const MAT_CHIP_LISTBOX_CONTROL_VALUE_ACCESSOR: any = {
     '[attr.role]': 'role',
     '[attr.aria-required]': 'role ? required : null',
     '[attr.aria-disabled]': 'disabled.toString()',
-    '[attr.aria-multiselectable]': 'multiple',
     '[attr.aria-orientation]': 'ariaOrientation',
     '[class.mat-mdc-chip-list-disabled]': 'disabled',
     '[class.mat-mdc-chip-list-required]': 'required',