Merge "Apparently for certain (API) requests $this->getTitle() doesn't return a valid...

diff --git a/includes/OutputPage.php b/includes/OutputPage.php
index 6075d8d..8fd7812 100644 (file)
--- a/includes/OutputPage.php
+++ b/includes/OutputPage.php
@@ -1889,7 +1889,12 @@ class OutputPage extends ContextSource {
         *   /w/index.php?title=Main_page&variant=zh-cn should never be served.
         */
        function addAcceptLanguage() {
-               $lang = $this->getTitle()->getPageLanguage();
+               $title = $this->getTitle();
+               if ( !$title instanceof Title ) {
+                       return;
+               }
+
+               $lang = $title->getPageLanguage();
                if ( !$this->getRequest()->getCheck( 'variant' ) && $lang->hasVariants() ) {
                        $variants = $lang->getVariants();
                        $aloption = array();