From ca438e786d24d9d96bb3dcb993c33ab8be8af5e9 Mon Sep 17 00:00:00 2001
From: Josh Lockhart <hello@joshlockhart.com>
Date: Wed, 12 Aug 2015 08:48:37 -0400
Subject: [PATCH] Do not assume response body is seekable in App::respond.
 Fixes #1434

---
 Slim/App.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Slim/App.php b/Slim/App.php
index 57ef449a7..2250cffbe 100644
--- a/Slim/App.php
+++ b/Slim/App.php
@@ -349,7 +349,9 @@ public function respond(ResponseInterface $response)
             // Body
             if (!$this->isEmptyResponse($response)) {
                 $body = $response->getBody();
-                $body->rewind();
+                if ($body->isSeekable()) {
+                    $body->rewind();
+                }
                 $settings = $this->container->get('settings');
                 while (!$body->eof()) {
                     echo $body->read($settings['responseChunkSize']);