Index: wp-includes/class.wp-scripts.php
===================================================================
--- wp-includes/class.wp-scripts.php	(revision 8299)
+++ wp-includes/class.wp-scripts.php	(working copy)
@@ -50,7 +50,7 @@
 			$ver .= '&' . $this->args[$handle];
 
 		$src = $this->registered[$handle]->src;
-		if ( !preg_match('|^https?://|', $src) ) {
+		if ( !preg_match('|^https?://|', $src) && !preg_match('|^' . preg_quote(WP_CONTENT_URL) . '|', $src)) {
 			$src = $this->base_url . $src;
 		}