Fix $append of HTTPRequest::addHeader()

diff --git a/wcfsetup/install/files/lib/util/HTTPRequest.class.php b/wcfsetup/install/files/lib/util/HTTPRequest.class.php
index ac47a3636c89a18fabd350c15e74d022c3271689..3ae0afdb635f95104431ceac50f06e41ca938966 100644 (file)
--- a/wcfsetup/install/files/lib/util/HTTPRequest.class.php
+++ b/wcfsetup/install/files/lib/util/HTTPRequest.class.php
@@ -422,8 +422,9 @@ final class HTTPRequest {
                if ($append && isset($this->headers[$name])) {
                        $this->headers[$name][] = $value;
                }
-               
-               $this->headers[$name] = (array) $value;
+               else {
+                       $this->headers[$name] = array($value);
+               }
        }
        
        /**