How to add favicon in rails 3.2

ruby-on-rails favicon
noob picture noob · Mar 28, 2012 · Viewed 53.4k times · Source

I know new rails apps come with an empty favicon.ico file. I want to know how I go about adding a favicon. I know you can use the favicon_link_tag helper, but I am not sure how to populate the favicon.ico file. Do you use favicon generators? If so, which one is best?

I also want to be able to cache it, does rails do that automatically as well?

Thanks

Answer

Adrien Lamothe picture Adrien Lamothe · Apr 30, 2013

Simply add this to the <head></head> section of your layouts:

<%= favicon_link_tag 'favicon.ico' %>

Place the favicon.ico image in /app/assets/images/ if you are using the asset pipeline, and in /public/images/ if you are not.

Also, there is a bug if using Ruby 2.0 with Rails 3.0.20 (and maybe also 3.0.x), that will throws an exception when trying to render favicon.ico.

The fix is to place the following code into application_controller.rb:

  config.relative_url_root = ""

Related questions

Rails 4 favicon issue

Trying to add a favicon to my rails app, but doesn't seem to be working locally. Heres my code Aplication.html.erb (in the head section) <%= favicon_link_tag '/favicon.ico' %> Note: Favicon has been saved within …

Read More
Getting error: Peer authentication failed for user "postgres", when trying to get pgsql working with rails

I'm getting the error: FATAL: Peer authentication failed for user "postgres" when I try to make postgres work with Rails. Here's my pg_hba.conf, my database.yml, and a dump of the full trace. I changed authentication to md5 …

Read More
How to get a random number in Ruby

How do I generate a random number between 0 and n?

Read More