Add App Page: Don't store index.html in app_url

gadget/gadget_cribjs_page_add_application.js

@@ -148,6 +148,7 @@
         options.to_path = options.to_path ? options.to_path + "/" : options.to_path;
         options.default_page = options.to_path + options.redirect_url;
         options.redirect_to = scope + options.default_page;
+        options.scope = scope;
         var promise_list = [];
         if (gadget.props.element
               .querySelector("form.crib-load-from-zip .load-zip-file").files.length !== 0) {
@@ -171,7 +172,8 @@
             application_image_type: undefined,
             application_image_url: undefined,
             application_description: undefined,
-            application_url: options.redirect_to,
+            application_url: options.default_page === "index.html" ?
+              options.scope : options.redirect_to,
             application_path: options.to_path,
             application_edit_page: options.redirect_to,
             application_crib: options.crib_url,