Fix that the progress bar would fill the entire screen in Safari 6
Fix that the progress bar would fill the entire screen in Safari 6

Perhaps some kind of stacking context (https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Understanding_z_index/The_stacking_context) issue.

Fixes #436
Closes #437

arigesher/turbolinks,Novik/turbolinks,rails/turbolinks,Novik/turbolinks,Thibaut/turbolinks,imton/turbolinks,Thibaut/turbolinks,schneidmaster/rails-turbolinks,jho406/turbolinks,jnillo/turbolinks,imton/turbolinks,jho406/turbolinks,naveed-ahmad/turbolinks,caulfield/turbolinks,smd686s/turbolinks,turbolinks/turbolinks-classic,LOTSIX/Turbolinks,jasnow/turbolinks,schneidmaster/rails-turbolinks,savef/turbolinks,jvenezia/turbolinks,savef/turbolinks,caulfield/turbolinks,elia/turbolinks,saboyutaka/turbolinks,maclover7/turbolinks,rstacruz/turbolinks,monkbroc/turbolinks,jasnow/turbolinks,ngpestelos/turbolinks,rails/turbolinks,imton/turbolinks,mizchi/turbolinks,missive/turbolinks,celsodantas/turbolinks,jnillo/turbolinks,turbolinks/turbolinks-classic,naveed-ahmad/turbolinks,WojtekKruszewski/turbolinks,arigesher/turbolinks,christhekeele/turbolinks,glittershark/turbolinks,savef/turbolinks,naveed-ahmad/turbolinks,Ju2ender/turbolinks,monkbroc/turbolinks,Novik/turbolinks,christhekeele/turbolinks,jvenezia/turbolinks,gmalette/turbolinks,mizchi/turbolinks,imton/turbolinks,missive/turbolinks,caulfield/turbolinks,gmalette/turbolinks,garbles/turbolinks,eileencodes/turbolinks,celsodantas/turbolinks,schneidmaster/rails-turbolinks,saboyutaka/turbolinks,arigesher/turbolinks,elia/turbolinks,Novik/turbolinks,caulfield/turbolinks,maclover7/turbolinks,mizchi/turbolinks,activebridge/turbolinks,peterjm/turbolinks,WojtekKruszewski/turbolinks,saboyutaka/turbolinks,infinum/turbolinks,celsodantas/turbolinks,savef/turbolinks,activebridge/turbolinks,ngpestelos/turbolinks,hexacyanide/turbolinks,DrewMartin/turbolinks,activebridge/turbolinks,garbles/turbolinks,smd686s/turbolinks,smd686s/turbolinks,rails/turbolinks,jvenezia/turbolinks,elia/turbolinks,turbolinks/turbolinks-classic,monkbroc/turbolinks,elia/turbolinks,rails/turbolinks,jho406/turbolinks,jvenezia/turbolinks,jnillo/turbolinks,jasnow/turbolinks,rstacruz/turbolinks,gmalette/turbolinks,arigesher/turbolinks,saboyutaka/turbolinks,smd686s/turbolinks,ngpestelos/turbolinks,rstacruz/turbolinks,naveed-ahmad/turbolinks,missive/turbolinks,monkbroc/turbolinks,philiptzou/turbolinks,DrewMartin/turbolinks,jho406/turbolinks,glittershark/turbolinks,WojtekKruszewski/turbolinks,jasnow/turbolinks,maclover7/turbolinks,ngpestelos/turbolinks,LOTSIX/Turbolinks,turbolinks/turbolinks-classic,rstacruz/turbolinks,Thibaut/turbolinks,jnillo/turbolinks,maclover7/turbolinks,celsodantas/turbolinks,Thibaut/turbolinks,schneidmaster/rails-turbolinks,mizchi/turbolinks,WojtekKruszewski/turbolinks,gmalette/turbolinks,missive/turbolinks,activebridge/turbolinks,peterjm/turbolinks