Favicon does not appear during production even after clearing the cache

Question

We use Ruby-on-Rails 3.1. I put my favicon.ico in a shared folder. Then I included the link in my layout file as follows:

 <link rel="shortcut icon" href="alphaodb.herokuapp.com/favicon.ico" /> 

I also tried

 <%= favicon_link_tag '/favicon.ico'%> 

In Chrome, it appears in development, but not in production.

In Firefox, it is not displayed both in development and in production.

I also cleared the cache. I know that they ask him many times on this site, but still nothing works for me, can anyone help me with this?

Answer 1

Is your favicon.ico file valid? Specifically, did you take the PNG image and rename it to favicon.ico ?

ICO is a special format other than PNG and JPG. However, Chrome is smart enough to figure it out and handle it properly. But you can still expect strange behavior in different browsers.

Answer 2

It's not entirely clear why this worked, but I went into config / initializers / assets.rb and changed

  Rails.application.config.assets.version = '1.0' 

to

  Rails.application.config.assets.version = '1.1' 

and my badge appeared

Answer 3

This is an old question, but in this situation rake assets:precompile always worth it when something like this doesn't work.

It is also worth mentioning that <%= favicon_link_tag %> creates another environment-based location, local or production.

These two things threw me up.