diff --git a/app/views/layouts/application.html.slim b/app/views/layouts/application.html.slim
index 88fa3e0..d2bb440 100644
--- a/app/views/layouts/application.html.slim
+++ b/app/views/layouts/application.html.slim
@@ -15,7 +15,6 @@ html[lang="en"]
     = favicon_link_tag 'favicon.png'
     = render 'layouts/ga'
     script
-      | window.mainWorkerPath = '#{javascript_path "main_worker"}';
       | window.browserIdUser = #{browser_id_user};
   body
     = render 'layouts/header'
diff --git a/app/views/layouts/bare.html.slim b/app/views/layouts/bare.html.slim
index 91395d8..433b18e 100644
--- a/app/views/layouts/bare.html.slim
+++ b/app/views/layouts/bare.html.slim
@@ -5,7 +5,5 @@ html[lang="en"]
     title = page_title
     = stylesheet_link_tag 'embed', :media => 'all'
     = javascript_include_tag 'embed'
-    script
-      | window.mainWorkerPath = '#{javascript_path "main_worker"}';
   body.iframe
     = yield
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 117eb1e..9b1841a 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -59,7 +59,7 @@ Asciinema::Application.configure do
 
   # Precompile additional assets.
   # application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
-  config.assets.precompile += %w( player.css player.js main_worker.js embed.css embed.js )
+  config.assets.precompile += %w( player.css player.js embed.css embed.js )
 
   # Ignore bad email addresses and do not raise email delivery errors.
   # Set this to true and configure the email server for immediate delivery to raise delivery errors.