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toolmantim/application.html.erb

Created February 16, 2013 11:26
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Pre-fetching your Rails asset hostname using dns-prefetch in your application's layout file
Raw
application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>App title</title>
<% if ActionController::Base.asset_host %>
<link rel="dns-prefetch" href="//<%= ActionController::Base.asset_host %>" />
<% end %>
Raw
application.html.haml
!!!
%html
%head
%title App title
- if ActionController::Base.asset_host
%link{rel:"dns-prefetch", href:"//#{ActionController::Base.asset_host}"}
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