Better error flow handling (overload dealing, w/ htmlCache), bugfix f…

…or updating page when server non-400OK

For the second point, possibly, now, retries will happen (requires further testing to confirm for now)

crero-script.js

@@ -1,4 +1,7 @@
 // @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL v3.0
+var uaxhttpattempt=0;
+
+
 var page_init;
 var album_displayed=0;
 var overload_track_counter=NaN;
@@ -534,7 +537,6 @@ function update_ajax_body(http_url_target, comesfrominfiniteloop){
 	var parameters='';
 	var arg='';
     set_overload_track_counter(0);
-	var uaxhttpattempt=0;
 
 	//set_page_init(false);
 
@@ -658,13 +660,11 @@ function update_ajax_body(http_url_target, comesfrominfiniteloop){
 			 if (infiniteloop){init_page();}
 				}
 				else {
-					uaxhttpattempt++;
-					update_twirling_message('The server replied with a non OK code: '+this.status+' ; retrying, retry is '+uaxhttpattempt);
-					this.abort();
-					//update_ajax_body(http_url_target, comesfrominfiniteloop);
-					this.open();
-					this.send();
-				}
+						uaxhttpattempt++;
+						update_twirling_message('The server replied with a non OK code: '+this.status+' ; retrying, retry is '+uaxhttpattempt);
+						this.abort();
+						update_ajax_body(http_url_target, comesfrominfiniteloop);
+					}
 				}
 			}
 			//console.log(finalurl);
@@ -1179,6 +1179,9 @@ function set_creroypservices(cyparg){
 function init_page() {
 	radiomsg='fetching data...';
 
+	uaxhttpattempt=0;
+
+
 	if (radioIntervalFunc==null){
 		radioIntervalFunc=window.setInterval(update_radio_nowplaying, 4500);
 	}

index.php

@@ -3149,7 +3149,7 @@ function checkOverload(allowRecursive){
 			if (this.readyState == 4 && this.status == 200) {
 			 dl_queried = parseInt(this.responseText);
 
-			 if ((dl_queried!=parseInt(-1))&&(parseInt(get_dl_album_count())!=dl_queried)){
+			 if (Number.isInteger(overload_track_counter)&&(dl_queried!=parseInt(-1))&&(parseInt(get_dl_album_count())!=dl_queried)){
 					set_album_error(true);
 
 					set_dl_album_count(dl_queried);
@@ -3171,7 +3171,7 @@ function checkOverload(allowRecursive){
 			if (this.readyState == 4 && this.status == 200) {
 			 str_queried = parseInt(this.responseText);
 
-			 if ((str_queried!=parseInt(-1))&&(parseInt(get_str_album_count())!=str_queried)){
+			 if (Number.isInteger(overload_track_counter)&&(str_queried!=parseInt(-1))&&(parseInt(get_str_album_count())!=str_queried)){
 
 					set_album_error(true);