error message more easy to understand

Co-authored-by: AHOHNMYC <24810600+AHOHNMYC@users.noreply.github.com>

assets/js/embed.js

@@ -78,14 +78,10 @@ function return_message(message,target_window){
         additional_info['value'] = add_value;
     }
     if(message.eventname==='error'){
-        let add_value = {geterrorcode:player.error().code};
-        additional_info['value'] = add_value;
+        additional_info['value'] = {geterrorcode:player.error().code};
     }
     message = Object.assign(additional_info,message);
-    let target_origin = url_params.get('origin');
-    if(target_origin===null){
-        target_origin = '*';
-    }
+    let target_origin = url_params.get('origin') || '*';
     target_window.postMessage(message,target_origin);
 }
 

assets/js/invidious_iframe_api.js

@@ -30,7 +30,7 @@ class invidious_embed{
         this.eventobject = {ready:[],ended:[],error:[],ratechange:[],volumechange:[],waiting:[],timeupdate:[],loadedmetadata:[],play:[],seeking:[],seeked:[],playerresize:[],pause:[],statechange:[]};
         var replace_elemnt;
         if(element===undefined||element===null){
-            throw 'please set element id or HTMLElement';
+            throw 'Please, pass element id or HTMLElement as first argument';
         }
         else if(typeof element==='string'){
             replace_elemnt = document.getElementById(element);
@@ -346,7 +346,7 @@ class invidious_embed{
     cueVideoById(option,startSeconds){
         this.playOtherVideoById(option,false,startSeconds);
     }
-    cuevVideoByUrl(option,startSeconds){
+    cueVideoByUrl(option,startSeconds){
         this.playOtherVideoById(option,false,startSeconds);
     }
     loadVideoByUrl(option,startSeconds){