unset ad iframe width from CSS reset. cleanup ads slots onDestroy. Ensure loaded ad scripts aren't already in head

src/components/AdSlot/AdSlot.svelte

@@ -39,7 +39,25 @@
       window.graphicsAdQueue = window.graphicsAdQueue || [];
       window.graphicsAdQueue.push(adSlot);
     }
+
+    return () => {
+      // @ts-ignore
+      const freestar = window?.freestar;
+      if (freestar) {
+        freestar.queue.push(function () {
+          freestar.deleteAdSlots(adId);
+        });
+      }
+    };
   });
 </script>
 
 <div data-freestar-ad="{dataFreestarAd || null}" id="{adId}"></div>
+
+<style lang="scss">
+  div {
+    :global(iframe) {
+      width: auto;
+    }
+  }
+</style>

src/components/AdSlot/adScripts/loadScript.ts

@@ -6,6 +6,9 @@ interface attributesInterface {
 export const loadScript = (src: string, attributes?: attributesInterface) => {
   const { onload, async = true } = attributes || {};
 
+  const existingScript = document.querySelector(`script[src="${src}"]`);
+  if (existingScript) return;
+
   const script = document.createElement('script');
   script.addEventListener('load', onload);
   script.async = async;