WTF Facebook OG tags that don't work and the meta tags that do

gistfile1.php

<?php
	/**
	 * Insert site_name meta tag
	 */
	$site_name = gv_get_site_name();
	$site_name_escaped = esc_attr($site_name);
	$output .= "<meta property=\"og:site_name\" content=\"$site_name_escaped\" />\n";
	
	// WTF: Also add meta name=cre as site name because NYT uses it and facebook seems to pick it up from them despite it not being in the docs
	$output .= "<meta name='cre' content='$site_name_escaped' />\n";

///////

	/**
	 * Insert Author meta tag ONLY if it was set (many screens have no author)
	 */
	if ($author_name) :
		// DISABLED: Caused errors in FB parser which only wants FB profile URLs that we dont' have
		//$output .= "<meta property=\"article:author\" content=\"$author_name\" />\n";

		// WTF: Also add meta name=byl as "byline" because NYT uses it and facebook seems to pick it up despite it not being in the docs
		$byline = "$author_name";
		$output .= "<meta name='byl' content='$byline' />\n";
	endif;