Ticket #5449: 5449.wp-app.content-type.diff

wp-app.php

@@ -403 +403 @@
                         $slug = sanitize_file_name( $_SERVER['HTTP_TITLE'] );
                 elseif ( empty( $slug ) ) // just make a random name
                         $slug = substr( md5( uniqid( microtime() ) ), 0, 7);
-                $ext = preg_replace( '|.*/([a-z]+)|', '$1', $_SERVER['CONTENT_TYPE'] );
+                $ext = preg_replace( '|.*/(\w+)|', '$1', $_SERVER['CONTENT_TYPE'] );
                 $slug = "$slug.$ext";
                 $file = wp_upload_bits( $slug, NULL, $bits);