Illegal string offset ‘width’ and ‘height’ WordPress

functions.php

//this issue occurs when using image uploaded SVGs
// Image widgets


function wp_get_attachment_metadata_mine($data) {
	$res = $data;
	if (!isset($data['width']) || !isset($data['height'])) {
		$res = false;
	}
	return $res;                                                                                                                                                       
}
add_filter( 'wp_get_attachment_metadata' , 'wp_get_attachment_metadata_mine' );