[devdocsgjs/main: 651/1867] Update offline page

[Andy Holmes <andyholmes src gnome org>]

commit 27167a49a6c6183a670026335abb28cff473e37a
Author: Jasper van Merle <jaspervmerle gmail com>
Date:   Wed Jul 10 21:15:42 2019 +0200

    Update offline page

 assets/javascripts/app/config.coffee.erb               | 2 +-
 assets/javascripts/templates/pages/offline_tmpl.coffee | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/assets/javascripts/app/config.coffee.erb b/assets/javascripts/app/config.coffee.erb
index 9b28b5a5..dc37feab 100644
--- a/assets/javascripts/app/config.coffee.erb
+++ b/assets/javascripts/app/config.coffee.erb
@@ -14,4 +14,4 @@ app.config =
   release: <%= Time.now.utc.httpdate.to_json %>
   mathml_stylesheet: '<%= App.cdn_origin %>/mathml.css'
   service_worker_path: '/service-worker.js'
-  service_worker_enabled: <%= App.environment == 'production' || !ENV["ENABLE_SERVICE_WORKER"].nil? %>
+  service_worker_enabled: <%= App.environment == 'production' || ENV["ENABLE_SERVICE_WORKER"] == 'true' %>
diff --git a/assets/javascripts/templates/pages/offline_tmpl.coffee 
b/assets/javascripts/templates/pages/offline_tmpl.coffee
index 52f64839..e8b262aa 100644
--- a/assets/javascripts/templates/pages/offline_tmpl.coffee
+++ b/assets/javascripts/templates/pages/offline_tmpl.coffee
@@ -47,7 +47,7 @@ canICloseTheTab = ->
     reason = "aren't available in your browser (or are disabled)"
 
     if app.config.env != 'production'
-      reason = "are disabled in your development instance of DevDocs (enable them by setting the 
ENABLE_SERVICE_WORKERS environment variable)"
+      reason = "are disabled in your development instance of DevDocs (enable them by setting the 
<code>ENABLE_SERVICE_WORKERS</code> environment variable to <code>true</code>)"
 
     """ No. Service Workers #{reason}, so loading <a href="//devdocs.io">devdocs.io</a> offline won't 
work.<br>
         The current tab will continue to function even when you go offline (provided you installed all the 
documentations beforehand). """