handle unhandled promise error

src/vs/editor/contrib/links/browser/links.ts

@@ -273,7 +273,7 @@ class LinkDetector implements editorCommon.IEditorContribution {
 			} else {
 				onUnexpectedError(err);
 			}
-		});
+		}).done(null, onUnexpectedError);
 	}
 
 	public getLinkOccurence(position: editorCommon.IPosition): LinkOccurence {