diff --git a/common/content/commandline.js b/common/content/commandline.js
index c4c0b055..413a55a5 100644
--- a/common/content/commandline.js
+++ b/common/content/commandline.js
@@ -852,6 +852,9 @@ const CommandLine = Module("commandline", {
         catch (e) {
             dactyl.reportError(e, true);
         }
+        finally {
+            return true;
+        }
     },
 
     /**
@@ -1644,7 +1647,8 @@ const CommandLine = Module("commandline", {
             ["<Space>", '"', "'"], "Expand command line abbreviation",
             function () {
                 commandline.resetCompletions();
-                return editor.expandAbbreviation(modes.COMMAND_LINE);
+                editor.expandAbbreviation(modes.COMMAND_LINE);
+                return true;
             },
             { route: true });
 
diff --git a/common/content/editor.js b/common/content/editor.js
index a10e22bb..83986854 100644
--- a/common/content/editor.js
+++ b/common/content/editor.js
@@ -417,7 +417,6 @@ const Editor = Module("editor", {
             textbox.selectionStart = currStart - len + abbrText.length;
             textbox.selectionEnd   = currEnd   - len + abbrText.length;
         }
-
         return true;
     },
 }, {
diff --git a/common/content/events.js b/common/content/events.js
index 188e2dc7..75e5eb85 100644
--- a/common/content/events.js
+++ b/common/content/events.js
@@ -741,6 +741,8 @@ const Events = Module("events", {
         function isEscape(key) key == "<Esc>" || key == "<C-[>";
 
         function killEvent() {
+            if (/key|input/.test(event.type))
+                util.dumpStack();
             event.preventDefault();
             event.stopPropagation();
         }
@@ -869,6 +871,7 @@ const Events = Module("events", {
             // only follow a map if there isn't a longer possible mapping
             // (allows you to do :map z yy, when zz is a longer mapping than z)
             else if (map && !event.skipmap && candidates.length == 0) {
+                util.dump(map, this._input);
                 this._input.pendingMap = null;
                 this._input.count = parseInt(countStr, 10);
                 if (isNaN(this._input.count))