WordPress at a glance
filter is not described

emoji_svg_url filter-hook . WP 4.6.0

Filters the URL where emoji SVG images are hosted.

Usage

add_filter( 'emoji_svg_url', 'filter_function_name_2423' );
function filter_function_name_2423( $url ){
	// filter...

	return $url;
}
$url(string)
The emoji base URL for svg images.

Where the hook is called

_print_emoji_detection_script()
wp_resource_hints()
wp-includes/formatting.php 5055
'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/11/svg/' ),
wp-includes/general-template.php 2906
$hints['dns-prefetch'][] = apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/11/svg/' );

Where the hook is used (in WP core)

Does not used.