Merge commit 'fa89acd'

# Conflicts:
#	.gitignore
#	extensions/ArchInterWiki.sql

1 files changed, 6 insertions, 2 deletions

diff --git a/includes/exception/MWException.php b/includes/exception/MWException.php
index 478fead1..c0186f9f 100644
--- a/includes/exception/MWException.php
+++ b/includes/exception/MWException.php
@@ -238,8 +238,7 @@ class MWException extends Exception {
 		} elseif ( self::isCommandLine() ) {
 			MWExceptionHandler::printError( $this->getText() );
 		} else {
-			self::header( 'HTTP/1.1 500 MediaWiki exception' );
-			self::header( 'Status: 500 MediaWiki exception' );
+			self::statusHeader( 500 );
 			self::header( "Content-Type: $wgMimeType; charset=utf-8" );
 
 			$this->reportHTML();
@@ -266,4 +265,9 @@ class MWException extends Exception {
 			header( $header );
 		}
 	}
+	private static function statusHeader( $code ) {
+		if ( !headers_sent() ) {
+			HttpStatus::header( $code );
+		}
+	}
 }