Update app.py

app.py

@@ -647,16 +647,15 @@ async(c, o, b, p, d, n, m)=>{
       }
       document.getElementById("iframe3D").src = "index.htm";
       document.getElementById("iframe3D").onload = function() {
-        document.getElementById("iframe3D").contentDocument.getElementById("coords").value = c;
-        document.getElementById("iframe3D").contentDocument.getElementById("order").value = o;
-        document.getElementById("iframe3D").contentDocument.getElementById("bgcolor").value = b;
-
         if (o.indexOf(""+n) < 0) {
           if (o != "") { o += ","; }
           o += n;
         }
         alert(o);
         var o_ = o.split(",");
+        document.getElementById("iframe3D").contentDocument.getElementById("coords").value = c;
+        document.getElementById("iframe3D").contentDocument.getElementById("order").value = o;
+        document.getElementById("iframe3D").contentDocument.getElementById("bgcolor").value = b;
         document.getElementById("iframe3D").contentDocument.getElementById("bgimage").value = "";
         document.getElementById("iframe3D").contentDocument.getElementById("bgdepth").value = "";
         for (var j=0; j<o_.length; j++) {