From 0cb57d5e980bfb7e71f2c727974a3fa7cd36d267 Mon Sep 17 00:00:00 2001
From: Thibaut Courouble <thibaut@me.com>
Date: Sun, 16 Oct 2016 10:12:45 -0400
Subject: [PATCH] Allow search engines to crawl /offline &co

---
 assets/javascripts/lib/page.coffee | 6 ++++++
 public/robots.txt                  | 6 +-----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/assets/javascripts/lib/page.coffee b/assets/javascripts/lib/page.coffee
index 546f5f8d..246cff25 100644
--- a/assets/javascripts/lib/page.coffee
+++ b/assets/javascripts/lib/page.coffee
@@ -41,6 +41,7 @@ page.show = (path, state) ->
   currentState = context.state
   page.dispatch(context)
   context.pushState()
+  updateCanonicalLink()
   track()
   context
 
@@ -50,6 +51,7 @@ page.replace = (path, state, skipDispatch, init) ->
   currentState = context.state
   page.dispatch(context) unless skipDispatch
   context.replaceState()
+  updateCanonicalLink()
   track() unless init or skipDispatch
   context
 
@@ -177,6 +179,10 @@ onclick = (event) ->
 isSameOrigin = (url) ->
   url.indexOf("#{location.protocol}//#{location.hostname}") is 0
 
+updateCanonicalLink = ->
+  @canonicalLink ||= document.head.querySelector('link[rel="canonical"]')
+  @canonicalLink.setAttribute('href', "http://#{location.host}#{location.pathname}")
+
 track = ->
   ga?('send', 'pageview', location.pathname + location.search + location.hash)
   _gauges?.push(['track'])
diff --git a/public/robots.txt b/public/robots.txt
index 5447d6f0..14267e90 100644
--- a/public/robots.txt
+++ b/public/robots.txt
@@ -1,6 +1,2 @@
 User-agent: *
-Disallow: /about
-Disallow: /news
-Disallow: /tips
-Disallow: /help
-Disallow: /offline
+Allow: /
\ No newline at end of file