| Index: trunk/extensions/UsabilityInitiative/PrefSwitch/SpecialPrefSwitch.php |
| — | — | @@ -142,9 +142,11 @@ |
| 143 | 143 | $this->render( 'main' ); |
| 144 | 144 | } |
| 145 | 145 | // Always show a way back |
| 146 | | - $wgOut->addWikiMsgArray( |
| 147 | | - 'prefswitch-return', array( $this->originFullUrl, $this->originTitle ), array( 'parse' ) |
| 148 | | - ); |
| | 146 | + if ( $this->originTitle && $this->originFullUrl ) { |
| | 147 | + $wgOut->addWikiMsgArray( |
| | 148 | + 'prefswitch-return', array( $this->originFullUrl, $this->originTitle ), array( 'parse' ) |
| | 149 | + ); |
| | 150 | + } |
| 149 | 151 | // Set page title |
| 150 | 152 | if ( self::isSwitchedOn( $wgUser ) ) { |
| 151 | 153 | switch ( $wgRequest->getVal( 'mode' ) ) { |