Fixes from production deployment

* Remove unnecessary files
* Fix typo
* Force HTTP 1.1 for "old-style" signed requests

Author: oneiros

fasp_base/app/mailers/fasp_base/application_mailer.rb

@@ -15,7 +15,7 @@ class Error < ::StandardError ; end
   mattr_accessor :fediverse_account
 
   def self.base_url
-    protocol = Rails.env.production? ? "https:" : "http"
+    protocol = Rails.env.production? ? "https" : "http"
     "#{protocol}://#{domain}/fasp"
   end
 end

fasp_base/lib/fasp_base.rb

@@ -17,15 +17,12 @@ def fetch
   private
 
   def message_signature_request
-    request_with_headers(message_signature_headers)
+    HTTPX.with(headers: message_signature_headers).get(uri)
   end
 
+  # Forces HTTP 1.1 because http/2 does not allow the `Host` header we sign
   def signature_request
-    request_with_headers(signature_headers)
-  end
-
-  def request_with_headers(headers)
-    HTTPX.with(headers:).get(uri)
+    HTTPX.with(ssl: { alpn_protocols: %w[http/1.1] }, headers: signature_headers).get(uri)
   end
 
   def message_signature_headers