ref: master
app/views/shared/block.html.erb
<% if block.cacheable? && use_cache %>
<% cache_timeout(block.cache_key(language, user), block.timeout) do %>
<%= display_block_content(block, main_content) %>
<% end %>
<% else %>
<%= display_block_content(block, main_content) %>
<% end %>