diff --git a/js/lib/Comms.js b/js/lib/Comms.js
index 8a477bf..d6eec1e 100644
--- a/js/lib/Comms.js
+++ b/js/lib/Comms.js
@@ -116,9 +116,9 @@ var _com_sendToEachFrame = async function(message) {
       promises.push(browser.tabs.sendMessage(tabs[0].id, message, {frameId: frame.frameId}));
     }
     
-    // počakajmo, da so obljube izpolnjene
+    // počakajmo, da so obljube izpolnjene. 
     // wait for all promises to be kept
-    var responses = Promise.all(promises);
+    var responses = await Promise.all(promises);
     
     if(Debug.debug)
       console.log("[Comms::_com_sendToEveryFrame] we received responses from all frames", responses);
@@ -127,7 +127,7 @@ var _com_sendToEachFrame = async function(message) {
   }
   catch(e){
     console.log("[Comms::_com_sendToEveryFrame] something went wrong when getting frames. this is error:", e);
-    return null;
+    return Promise.reject();
   }
 }
 
diff --git a/js/uw-bg.js b/js/uw-bg.js
index d85bb12..2925918 100644
--- a/js/uw-bg.js
+++ b/js/uw-bg.js
@@ -21,7 +21,7 @@ async function _uwbg_onTabSwitched(activeInfo){
   
   var tabId = activeInfo.tabId;   // just for readability
   
-  Comms.sendToEach({"cmd":"has-video"});
+  Comms.sendToEach({"cmd":"has-videos"});
 }
 
 async function _uwbg_rcvmsg(message){