| Index: trunk/extensions/UsabilityInitiative/Vector/Modules/EditWarning/EditWarning.js |
| — | — | @@ -19,7 +19,7 @@ |
| 20 | 20 | fallbackResult = fallbackWindowOnBeforeUnload(); |
| 21 | 21 | } |
| 22 | 22 | // Check if their onbeforeunload hook returned something |
| 23 | | - if ( fallbackResult !== null ) { |
| | 23 | + if ( fallbackResult !== undefined ) { |
| 24 | 24 | // Exit here, returning their message |
| 25 | 25 | return fallbackResult; |
| 26 | 26 | } |