diff --git a/app/javascript/src/javascripts/common.js.erb b/app/javascript/src/javascripts/common.js
similarity index 66%
rename from app/javascript/src/javascripts/common.js.erb
rename to app/javascript/src/javascripts/common.js
index 24c033dea..931266d8e 100644
--- a/app/javascript/src/javascripts/common.js.erb
+++ b/app/javascript/src/javascripts/common.js
@@ -20,12 +20,8 @@ $(function() {
     e.preventDefault();
   });
 
-  const CANONICAL_DOMAIN = <%= Danbooru.config.domain.to_json.html_safe %>;
-  const CANONICAL_HOSTNAME = <%= Danbooru.config.hostname.to_json.html_safe %>;
-  const ENABLE_ANTIPROXYING = <%= Danbooru.config.enable_antiproxying?.to_json.html_safe %>;
-
-  if (ENABLE_ANTIPROXYING && !location.hostname.endsWith(CANONICAL_DOMAIN)) {
-    location.hostname = CANONICAL_HOSTNAME;
+  if (Danbooru.config["enable_antiproxying?"] && !location.hostname.endsWith(Danbooru.config.domain)) {
+    location.hostname = Danbooru.config.hostname;
   }
 });
 
diff --git a/app/views/layouts/default.html.erb b/app/views/layouts/default.html.erb
index 7944e26c1..2fddb3018 100644
--- a/app/views/layouts/default.html.erb
+++ b/app/views/layouts/default.html.erb
@@ -58,6 +58,7 @@
       window.Danbooru = {};
     }
 
+    window.Danbooru.config = <%= [:hostname, :domain, :enable_antiproxying?].map { |opt| [opt, Danbooru.config.send(opt)] }.to_h.to_json.html_safe %>;
     window.Danbooru.notice = Danbooru.Utility.notice;
     window.Danbooru.error = Danbooru.Utility.error;
   </script>