做了更多的挖掘,这似乎与我的主题有冲突:
add_filter( \'post_thumbnail_html\', \'remove_width_attribute\', 10 );
add_filter( \'image_send_to_editor\', \'remove_width_attribute\', 10 );
function remove_width_attribute( $html ) {
$html = preg_replace( \'/(width|height)="\\d*"\\s/\', "", $html );
return $html;
}