fix: mark strings in haml javascript as html_safe

They were escaped before and triggered exceptions in the browser.

app/views/layouts/global/_head.html.haml

@@ -18,7 +18,7 @@
 
   // Autocomplete caches results in sessionStorage.
   // After logging out, the session storage should be cleared.
-  #{ "if(sessionStorage.length > 0) sessionStorage.clear();" unless logged_in? }
+  #{ "if(sessionStorage.length > 0) sessionStorage.clear();".html_safe unless logged_in? }
 
 - if content_for?(:dom_loaded)
   :javascript

app/views/me/posts/index.html.haml

@@ -1,5 +1,5 @@
 - content_for :dom_loaded do
-  = "$('new_post').scrollToBottom();"
+  $('new_post').scrollToBottom();
 
 - content_for :title do
   .h1= link_to_user(@recipient, avatar: 'medium')

vendor/crabgrass_plugins/modalbox/app/helpers/modalbox_helper.rb

@@ -144,7 +144,7 @@ module ModalboxHelper
     format('Modalbox.setStrings(%s)', {
       ok: I18n.t(:ok_button), cancel: I18n.t(:cancel), close: I18n.t(:close_button),
       alert: I18n.t(:alert), confirm: I18n.t(:confirm), loading: I18n.t(:loading_progress)
-    }.to_json)
+    }.to_json).html_safe
   end
 
   private