-function listener(request, sender, sendResponse) {
- window.location = request.url;
- browser.runtime.onMessage.removeListener(listener);
-}
+(function () {
+ var listener;
+ listener = function(request, sender, sendResponse) {
+ browser.runtime.onMessage.removeListener(listener);
+ window.location = request.url;
+ }
-browser.runtime.onMessage.addListener(listener);
+ browser.runtime.onMessage.addListener(listener);
+})();