fix document loading from jio

jsonform.gadget.js

@@ -27,12 +27,12 @@
     url = new URL(url, base_url);
     if (urn_prefix) {
       pathname = url.pathname.slice(1);
-      return {
-        href: urn_prefix + encodeURIComponent(pathname + url.search + url.hash),
-        origin: urn_prefix,
-        pathname: encodeURIComponent(pathname),
-        hash: url.hash
-      };
+      this.href = urn_prefix + encodeURIComponent(pathname + url.search + url.hash);
+      this.origin = urn_prefix;
+      this.pathname = encodeURIComponent(pathname);
+      this.hash = url.hash;
+      this.search = "";
+      return this;
     }
     return url;
   }
@@ -119,9 +119,9 @@
       base_url = convertToRealWorldSchemaPath(g, path),
       absolute_url;
     if (base_url === "" || base_url.indexOf("#") === 0) {
-      absolute_url = URLwithJio(url, base_url_failback);
+      absolute_url = new URLwithJio(url, base_url_failback);
     } else {
-      absolute_url = URLwithJio(url, base_url);
+      absolute_url = new URLwithJio(url, base_url);
     }
     return absolute_url;
   }
@@ -223,7 +223,7 @@
     }
     url = convertUrlToAbsolute(g, path, decodeURI($ref), window.location);
     mapped_url = map_url(g, url);
-    if (mapped_url instanceof URL) {
+    if (mapped_url instanceof URL || mapped_url instanceof URLwithJio) {
       url = mapped_url;
     }
     protocol = url.protocol;
@@ -236,7 +236,7 @@
     download_url = url.origin + url.pathname + url.search;
     hash = url.hash;
     url = url.href;
-    if (!(mapped_url instanceof URL)) {
+    if (!(mapped_url instanceof URL || mapped_url instanceof URLwithJio)) {
       queue = RSVP.Queue()
         .push(function () {
           return mapped_url;
@@ -268,9 +268,9 @@
           schema_a = document.createElement("a"),
           pointed_a = document.createElement("a");
         schema_a.setAttribute("href", download_url);
-        schema_a.text = (URLwithJio(download_url)).pathname;
+        schema_a.text = (new URLwithJio(download_url)).pathname;
         pointed_a.setAttribute("href", url_from_pointed);
-        pointed_a.text = (URLwithJio(url_from_pointed)).pathname;
+        pointed_a.text = (new URLwithJio(url_from_pointed)).pathname;
         g.props.schema_resolve_errors[url_from_pointed] = {
           schemaPath: path,
           message: [