diff --git a/omega-target-chromium-extension/src/tabs.coffee b/omega-target-chromium-extension/src/tabs.coffee
index cac9de3..d51b6d5 100644
--- a/omega-target-chromium-extension/src/tabs.coffee
+++ b/omega-target-chromium-extension/src/tabs.coffee
@@ -41,7 +41,10 @@ class ChromeTabs
         @_badgeTab = null
     if not tab.url? or tab.url.indexOf("chrome") == 0
       if @_defaultAction
-        chrome.browserAction.setTitle(title: @_defaultAction.title, tabId: tab.id)
+        chrome.browserAction.setTitle({
+          title: @_defaultAction.title
+          tabId: tab.id
+        })
         @clearIcon tab.id
       return
     @actionForUrl(tab.url).then (action) =>
diff --git a/omega-target/src/options.coffee b/omega-target/src/options.coffee
index 72cc6fd..9fc2c33 100644
--- a/omega-target/src/options.coffee
+++ b/omega-target/src/options.coffee
@@ -619,6 +619,10 @@ class Options
       url = OmegaPac.Profiles.updateUrl(profile)
       if url
         results[key] = @fetchUrl(url, opt_bypass_cache).then((data) =>
+          # Errors and unsuccessful response codes shoud have been already
+          # rejected by fetchUrl and will not end up here.
+          # So empty data indicates success without any update (e.g. 304).
+          return profile unless data
           profile = OmegaPac.Profiles.byKey(key, @_options)
           profile.lastUpdate = new Date().toISOString()
           if OmegaPac.Profiles.update(profile, data)