Do not throw when setSaveHandler is called and headers have already been sent

sroze · sroze · commit c8bc22e5f267 · 2017-11-13T13:37:17.000Z
diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php b/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
@@ -395,10 +395,6 @@ public function setSaveHandler($saveHandler = null)
             throw new \InvalidArgumentException('Must be instance of AbstractProxy or NativeSessionHandler; implement \SessionHandlerInterface; or be null.');
         }
 
-        if (headers_sent($file, $line)) {
-            throw new \RuntimeException(sprintf('Failed to set the session handler because headers have already been sent by "%s" at line %d.', $file, $line));
-        }
-
         // Wrap $saveHandler in proxy and prevent double wrapping of proxy
         if (!$saveHandler instanceof AbstractProxy && $saveHandler instanceof \SessionHandlerInterface) {
             $saveHandler = new SessionHandlerProxy($saveHandler);
