respond to any unknown requests with index.html

Gemfile.lock

@@ -39,7 +39,7 @@ GIT
 
 GIT
   remote: git://github.com/travis-ci/travis-core.git
-  revision: 7b0da75b0a1d4ffd385ffe488dcf1a621aa73905
+  revision: 73679d7263ded28620dac7815e4aed253a8191d3
   specs:
     travis-core (0.0.1)
       actionmailer (~> 3.2.3)

config.ru

@@ -44,6 +44,10 @@ end
 
 use Rack::Deflater if deflate and deflate != '0'
 
+app = proc do |env|
+  Rack::File.new(nil).tap { |f| f.path = 'public/index.html' }.serving(env)
+end
+
 if run_api and run_api != '0'
   map api_endpoint.gsub(/:\d+/, '') do
     run Travis::Api::App.new
@@ -57,9 +61,8 @@ map client_endpoint do
     require 'rake-pipeline'
     require 'rake-pipeline/middleware'
     use Rake::Pipeline::Middleware, 'AssetFile'
+    run app
   else
-    use Rack::Static, urls: [""], root: 'public', index: 'index.html'
+    run Rack::Cascade.new([Rack::File.new('public'), app])
   end
-
-  run proc { |e| Rack::File.new(nil).tap { |f| f.path = 'public/index.html' }.serving(env) }
 end