diff --git a/src/snek/static/html-frame.js b/src/snek/static/html-frame.js
index 75f800e..8198a37 100644
--- a/src/snek/static/html-frame.js
+++ b/src/snek/static/html-frame.js
@@ -10,7 +10,10 @@ class HTMLFrame extends HTMLElement {
         this.container.classList.add("html_frame")
       const url = this.getAttribute('url');
       if (url) {
-        const fullUrl = url.startsWith("/") ? window.location.origin + url : new URL(window.location.origin + "/http-get")
+        let fullUrl = url.startsWith("/") ? window.location.origin + url : new URL(window.location.origin + "/http-get")
+        if(!fullUrl.startsWith("https")){
+          fullUrl = "https://" + fullUrl 
+        }
         if(!url.startsWith("/"))
             fullUrl.searchParams.set('url', url)   
         this.loadAndRender(fullUrl.toString());