From 0da19dfb315f7e1f261f6bb6a797756d2eac4ca4 Mon Sep 17 00:00:00 2001
From: Kris Maglione <maglione.k@gmail.com>
Date: Fri, 10 Oct 2008 18:03:09 +0000
Subject: [PATCH] Fix :se completion

---
 content/options.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/content/options.js b/content/options.js
index d56b62d1..594c93f9 100644
--- a/content/options.js
+++ b/content/options.js
@@ -709,7 +709,7 @@ liberator.Options = function () //{{{
                     return [0, liberator.completion.filter(optionCompletions, filter)];
                 }
 
-                let prefix = filter.match(/^(no|inv)/)[0] || "";
+                let prefix = (filter.match(/^(no|inv)/) || [""])[0];
                 if (prefix)
                     filter = filter.substr(prefix.length);