BuddyPress.org

On HTML validator https://validator.w3.org/ I have 1 error:

Bad value for attribute action on element form: Must be non-empty.
<form action=”” name=”activity-loop-form” id=”activity-loop-form” method=”post”>

Because in activity/activity-loop there is a form at the bottom with nothing in the action attribute:

do_action( 'bp_after_activity_loop' ); ?>

<?php if ( empty( $_POST['page'] ) ) : ?>

	<form action="" name="activity-loop-form" id="activity-loop-form" method="post">

		<?php wp_nonce_field( 'activity_filter', '_wpnonce_activity_filter' ); ?>

	</form>

<?php endif; ?>

I searched these forums and someone already mentioned this:
https://buddypress.org/support/search/Must+be+non-empty./

I don’t think HTML5 allows the action attribute to be blank.