converse.js: set https bosh link

source/jabber/index.html.slim

@@ -2,11 +2,17 @@
   == stylesheet_link_tag "converse/converse.min.css"
   == javascript_include_tag "converse.min.js"
 javascript:
+  var bosh_url;
+  if (window.location.protocol == "https:") {
+    bosh_url = 'https//higgsboson.tk:5281/http-bind/'
+  } else {}
+    bosh_url = 'http//higgsboson.tk:5280/http-bind/'
+  }
   require(['converse'], function (converse) {
     converse.initialize({
         auto_list_rooms: false,
         auto_subscribe: false,
-        bosh_service_url: '//higgsboson.tk:5820/http-bind', // Please use this connection manager only for testing purposes
+        bosh_service_url: bosh_url,
         hide_muc_server: false,
         i18n: locales.en,
         prebind: false,