diff --git a/lib/webpacker/dev_server_proxy.rb b/lib/webpacker/dev_server_proxy.rb
index 67f548287..ed73ebac0 100644
--- a/lib/webpacker/dev_server_proxy.rb
+++ b/lib/webpacker/dev_server_proxy.rb
@@ -11,7 +11,10 @@ def rewrite_response(response)
   def perform_request(env)
     if env["PATH_INFO"].start_with?("/#{public_output_uri_path}") && Webpacker.dev_server.running?
       env["HTTP_HOST"] = env["HTTP_X_FORWARDED_HOST"] = env["HTTP_X_FORWARDED_SERVER"] = Webpacker.dev_server.host_with_port
-      env["HTTP_X_FORWARDED_PROTO"] = Webpacker.dev_server.protocol
+      env["HTTP_X_FORWARDED_PROTO"] = env["HTTP_X_FORWARDED_SCHEME"] = Webpacker.dev_server.protocol
+      unless Webpacker.dev_server.https?
+        env["HTTPS"] = env["HTTP_X_FORWARDED_SSL"] = "off"
+      end
       env["SCRIPT_NAME"] = ""
 
       super(env)