static/index.html

@@ -295,12 +295,15 @@
         var hardware = document.querySelector('input[name="hardware"]:checked').value;
 
         var diagram_protocol = protocol.replace("v1","").replace("v2","");
-        var img = document.querySelector("#wiring_diagram");
-        img.onerror = function() {
-            console.log(`img not found: ${this.src}`);
-            this.src = "wiring_diagrams/v25iboard_secplus.png";
-        }
+        var img = new Image();
         img.src = `wiring_diagrams/${hardware}_${diagram_protocol}.png`;
+        if(img.height !== 0){
+            console.log(`diagram: ${img.src}`);
+            document.querySelector("#wiring_diagram").src = img.src;
+        }else{
+            console.log(`img not found: ${img.src}`);
+            document.querySelector("#wiring_diagram").src = "wiring_diagrams/v25iboard_secplus.png";
+        }
 
         if(protocol !== "secplusv2" && (hardware === "v2board_esp8266_d1_mini" || hardware === "v2board_esp32_d1_mini")){
           alert("ratgdo version 2.0 only works with Security + 2.0");