bad component(expected host component): received when running a rake task to send email with roadie on heroku

Question

I'm using the roadie gem to help with the inline css for emails and am getting the following error when running a rake task to send emails. My app is hosted on heroku. It works fine in development mode, but get this error in production. I don't quite understand the issue. Other mailings are sent out fine in production. I'm pretty much a beginner. Thanks in advance for any help!

rake aborted!
bad component(expected host component): http://nameless-taiga-7547.herokuapp.com/
/app/vendor/ruby-1.9.2/lib/ruby/1.9.1/uri/generic.rb:395:in `check_host'
/app/vendor/ruby-1.9.2/lib/ruby/1.9.1/uri/generic.rb:409:in `host='
/app/vendor/ruby-1.9.2/lib/ruby/1.9.1/uri/generic.rb:180:in `initialize'
/app/vendor/ruby-1.9.2/lib/ruby/1.9.1/uri/generic.rb:126:in `new'
/app/vendor/ruby-1.9.2/lib/ruby/1.9.1/uri/generic.rb:126:in `build'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:206:in `absolute_url_base'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:192:in      `ensure_absolute_url'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:180:in `block in make_image_urls_absolute'
/app/vendor/bundle/ruby/1.9.1/gems/nokogiri-1.5.6/lib/nokogiri/xml/node_set.rb:239:in `block in each'
/app/vendor/bundle/ruby/1.9.1/gems/nokogiri-1.5.6/lib/nokogiri/xml/node_set.rb:238:in `upto'
/app/vendor/bundle/ruby/1.9.1/gems/nokogiri-1.5.6/lib/nokogiri/xml/node_set.rb:238:in `each'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:179:in `make_image_urls_absolute'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:57:in `block in execute'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:80:in `block in adjust_html'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:79:in `tap'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:79:in `adjust_html'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/inliner.rb:51:in `execute'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie.rb:6:in `inline_css'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/action_mailer_extensions.rb:75:in `inline_style_response'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/action_mailer_extensions.rb:54:in `block in collect_responses_and_parts_order_with_inline_styles'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/action_mailer_extensions.rb:54:in `map'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/action_mailer_extensions.rb:54:in `collect_responses_and_parts_order_with_inline_styles'
/app/vendor/bundle/ruby/1.9.1/gems/actionmailer-3.2.11/lib/action_mailer/base.rb:648:in `mail'
/app/vendor/bundle/ruby/1.9.1/gems/roadie-2.4.3/lib/roadie/action_mailer_extensions.rb:35:in `mail_with_inline_styles'
/app/app/mailers/match_mailer.rb:13:in `deal_match'
/app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/base.rb:167:in `process_action'
/app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/base.rb:121:in `process'
/app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/rendering.rb:45:in `process'
/app/vendor/bundle/ruby/1.9.1/gems/actionmailer-3.2.11/lib/action_mailer/base.rb:458:in `process'
/app/vendor/bundle/ruby/1.9.1/gems/actionmailer-3.2.11/lib/action_mailer/base.rb:452:in `initialize'
/app/vendor/bundle/ruby/1.9.1/gems/actionmailer-3.2.11/lib/action_mailer/base.rb:439:in `new'
/app/vendor/bundle/ruby/1.9.1/gems/actionmailer-3.2.11/lib/action_mailer/base.rb:439:in `method_missing'
/app/lib/tasks/match.rake:24:in `block (3 levels) in <top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/relation/delegation.rb:6:in `each'
/app/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/relation/delegation.rb:6:in `each'
/app/lib/tasks/match.rake:20:in `block (2 levels) in <top (required)>'
/app/lib/tasks/match.rake:9:in `each'
/app/lib/tasks/match.rake:9:in `block in <top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/task.rb:236:in `call'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/task.rb:236:in `block in execute'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/task.rb:231:in `each'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/task.rb:231:in `execute'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/task.rb:175:in `block in invoke_with_call_chain'
/app/vendor/ruby-1.9.2/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/task.rb:168:in `invoke_with_call_chain'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/task.rb:161:in `invoke'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:149:in `invoke_task'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:106:in `each'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:106:in `block in top_level'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:115:in `run_with_threads'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:100:in `top_level'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:78:in `block in run'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:165:in `standard_exception_handling'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/lib/rake/application.rb:75:in `run'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.1.0/bin/rake:33:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/bin/rake:19:in `load'
/app/vendor/bundle/ruby/1.9.1/bin/rake:19:in `<main>'

In my rake task

task :match => :environment do
...
end

Here is what is in my production.rb

config.cache_classes = true
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
config.serve_static_assets = false
config.assets.compress = true
config.assets.compile = true
config.assets.digest = true
config.action_mailer.asset_host = { :host => 'http://nameless-taiga-7547.herokuapp.com/' }

ActionMailer::Base.smtp_settings = {
:address => 'smtp.sendgrid.net',
:port => '587',
:authentication => :plain,
:user_name => 'example',
:password => 'password',
:domain => 'heroku.com'
}

ActionMailer::Base.delivery_method = :smtp
config.action_mailer.default_url_options = { :host => 'http://nameless-taiga-7547.herokuapp.com/' }

Answer 1

You are asked to provide a Hostname, but you've instead provided a full URI. You should just provide the host:

config.action_mailer.asset_host = { :host => 'nameless-taiga-7547.herokuapp.com' }
config.action_mailer.default_url_options = { :host => 'nameless-taiga-7547.herokuapp.com' }