Remove non-TLS support

assets/js/render.js

@@ -1,17 +1,15 @@
-// The renderer, shared by the two things that ever build a page: the service
-// worker, which composes every navigation once it is installed, and boot.html,
-// which composes the one navigation that arrives before there is a worker to
-// do it.
+// The renderer: the templates in templates/, and the two things sw.js does
+// with them -- compose a fragment into the shell, and stand a notice in for a
+// page that could not be delivered.
 //
-// Sharing it is the whole point. A shell only the worker could build is what
-// made a first visit show a spinner and reload; with the same templates and
-// the same code reachable from the page, the first visit is already the app
-// and the worker is what makes the second one fast and the hundredth one
-// offline.
+// A file of its own rather than more of sw.js because it is the half with
+// nothing to do with the network: no routes, no caches, no requests. It was
+// loaded by boot.html as well once, which composed pages in the browser for a
+// device that could not install a worker; nothing but the worker builds a page
+// now.
 //
-// Loaded as a plain script by both -- importScripts in the worker, a <script>
-// tag in the page -- so it defines a global rather than exporting. Nunjucks
-// must already be loaded.
+// Loaded with importScripts, so it defines a global rather than exporting.
+// Nunjucks must already be loaded.
 (function (scope) {
   'use strict';
 
@@ -123,10 +121,9 @@
       //
       // chrome is what the shell needs and the fragment cannot carry: the
       // bookmark, the navbar picker's model, and the two versions the worker
-      // was built with. All three are null from boot.html, which has no worker
-      // to ask for any of them; the first two render as a hidden slot that
-      // fills itself if one ever appears, and the third renders as nothing,
-      // because no worker is the whole of what there is to report.
+      // was built with. reference is null on the book list, which is the
+      // picker's hidden state; the other two are always there, because the
+      // worker composing this is the thing that knows them.
       compose: function (fragment, chrome) {
         var title = (TITLE_RE.exec(fragment) || ['', ''])[1].trim();
         var content = fragment.replace(TITLE_RE, '');
@@ -134,9 +131,9 @@
         return render(name, {
           title: title,
           content: content,
-          mark: (chrome && chrome.mark) || null,
-          reference: (chrome && chrome.reference) || null,
-          version: (chrome && chrome.version) || null
+          mark: chrome.mark,
+          reference: chrome.reference,
+          version: chrome.version
         });
       },