What's wrong
An input button with empty `value=""` has no readable label for assistive technologies.
Who it affects
Screen reader users cannot tell what action submitting the form will trigger.
How to fix on Shopify
Provide a descriptive `value="{{ 'sections.cart.checkout' | t }}"`.
Code example
Problematic Code
LIQUID
<input type="submit" value="">Recommended Accessible Code
LIQUID
<input type="submit" value="{{ 'sections.cart.checkout' | t }}" class="btn-primary">How to check your fix
Verify `value` attribute is non-empty and describes the submission result.