Allow YOUTUBE & VIMEO iFrames in Slide Content

To prevent YOUTUBE and VIMEO iFrame code from being stripped out of your slide content, add the following code to your theme’s ‘functions.php‘ file:

function sa_allow_iframes_filter( $allowedposttags ) {

	// Only change for users who can publish posts
	if ( !current_user_can( 'publish_posts' ) ) return $allowedposttags;

	// Allow iframes and the following attributes
	$allowedposttags['iframe'] = array(
		'align' => true,
		'width' => true,
		'height' => true,
		'frameborder' => true,
		'name' => true,
		'src' => true,
		'title' => true,
		'allow' => true,
		'id' => true,
		'allowfullscreen' => true,
		'class' => true,
		'style' => true,
		'scrolling' => true,
		'marginwidth' => true,
		'marginheight' => true,
	);

	return $allowedposttags;
}
add_filter( 'wp_kses_allowed_html', 'sa_allow_iframes_filter' );