remove must which is not normative (#37653)

Musts in MDN are being misinterpreted as normative requirements. There is no MUST requirement here in the ARIA spec (it is a should) so MDN should not introduce one
mdn · Jan 15, 2025 · cdee0a0 · cdee0a0
1 parent a731cff
commit cdee0a0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/files/en-us/web/accessibility/aria/roles/alertdialog_role/index.md b/files/en-us/web/accessibility/aria/roles/alertdialog_role/index.md
@@ -22,7 +22,7 @@ As the name implies, `alertdialog` is a mashup of the [`dialog`](/en-US/docs/Web
 
 Being a type of dialog, the [`dialog`](/en-US/docs/Web/Accessibility/ARIA/Roles/dialog_role) role's states, properties, and keyboard focus requirements are applicable to the `alertdialog` role as well.
 
-Because of its urgent nature, interrupting the user's workflow, alert dialogs must always be [modal](/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-modal).
+Because of its urgent nature, interrupting the user's workflow, alert dialogs should be [modal](/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-modal).
 
 The alert dialog must have at least one focusable control — such as Confirm, Close, and Cancel — and focus must be moved to that control when the alert dialog appears. Alert dialogs can have additional interactive controls such as text fields and checkboxes.