Update back.html

back.html

@@ -36,7 +36,7 @@
     const model_url = urlParams.get("url");
     console.log(model_url);
     let myIframe = document.getElementById("myIframe");
-    let url_string = "https://omnibus-social-card-maker-ez.hf.space";
+    let url_string = "https://omnibus-social-card-maker-ez.hf.space/";
     let mod_url = model_url;
     let adsURL = url_string+"?url="+mod_url;
     console.log(adsURL);