don't send any potentially large embeds over ajax so as to avoid huge prefetch downloads. Strip them out and provide a notice to reload page to view them. Ensures they will only be loaded once.

include/main.js

@@ -138,7 +138,7 @@
 			});
 			$('.wall-item-outside-wrapper',data).each(function() {
 				var ident = $(this).attr('id');
-				if($('#' + ident).length == 0) { 
+				if($('#' + ident).length == 0) {
 					$('img',this).each(function() {
 						$(this).attr('src',$(this).attr('dst'));
 					});

mod/update_network.php

@@ -19,6 +19,15 @@ function update_network_content(&$a) {
         $replace = "<img\${1} dst=\"\${2}\"";
         $text = preg_replace($pattern, $replace, $text);
 
+		$replace = '<br />' . t('[Embedded content - reload page to view]') . '<br />';
+        $pattern = "/<\s*audio[^>]*>(.*?)<\s*\/\s*audio>/i";
+        $text = preg_replace($pattern, $replace, $text);
+        $pattern = "/<\s*video[^>]*>(.*?)<\s*\/\s*video>/i";
+        $text = preg_replace($pattern, $replace, $text);
+        $pattern = "/<\s*embed[^>]*>(.*?)<\s*\/\s*embed>/i";
+        $text = preg_replace($pattern, $replace, $text);
+
+
         echo str_replace("\t",'       ',$text);
 	echo (($_GET['msie'] == 1) ? '</div>' : '</section>');
 	echo "</body></html>\r\n";

mod/update_profile.php

@@ -38,6 +38,14 @@ function update_profile_content(&$a) {
 	$replace = "<img\${1} dst=\"\${2}\"";
 	$text = preg_replace($pattern, $replace, $text);
 
+	$replace = '<br />' . t('[Embedded content - reload page to view]') . '<br />';
+	$pattern = "/<\s*audio[^>]*>(.*?)<\s*\/\s*audio>/i";
+	$text = preg_replace($pattern, $replace, $text);
+	$pattern = "/<\s*video[^>]*>(.*?)<\s*\/\s*video>/i";
+	$text = preg_replace($pattern, $replace, $text);
+	$pattern = "/<\s*embed[^>]*>(.*?)<\s*\/\s*embed>/i";
+	$text = preg_replace($pattern, $replace, $text);
+
 	/**
 	 * reportedly some versions of MSIE don't handle tabs in XMLHttpRequest documents very well
 	 */