From 18045fecee1a23d11cfec9dccf5693fea6bd9cf9 Mon Sep 17 00:00:00 2001
From: Marco Schaden <ms@donschado.de>
Date: Sun, 18 Oct 2020 13:34:28 +0200
Subject: [PATCH 1/2] Rails 6 expects a different mime type format

since the gem is unmaintained I borrowed the fix from:
https://github.com/bigjason/jpbuilder/pull/13
---
 lib/jpbuilder-handler.rb | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/lib/jpbuilder-handler.rb b/lib/jpbuilder-handler.rb
index 11c2d69..0e3eda8 100644
--- a/lib/jpbuilder-handler.rb
+++ b/lib/jpbuilder-handler.rb
@@ -2,17 +2,22 @@
 
 class JPbuilderHandler
   cattr_accessor :default_format, :default_callback
-  self.default_format = Mime[:json]
-  self.default_callback = nil
 
-  def self.call(template)
+  def initialize
+    self.default_callback = nil
+    self.default_format = (Rails.version < '6.0.0') ? Mime[:json] : :json
+  end
+
+  def self.call(template, source=nil)
+    source ||= template.source
     %{
       if defined?(json)
-        #{template.source}
+        #{source}
       else
         result = JbuilderTemplate.encode(self) do |json|
-          #{template.source}
+          #{source}
         end
+        result = result.each_char.to_a.map { |chr| chr.ord > 1000 ? "\\\\u\#{"%4.4x" % chr.ord}" : chr }.join
         callback = params[:callback] || JPbuilderHandler.default_callback
         if callback.present?
           "/**/\#{callback}(\#{result});"

From a7f025e429c36dd362c460b89370b0b0eb483e44 Mon Sep 17 00:00:00 2001
From: Marco Schaden <ms@donschado.de>
Date: Sat, 24 Oct 2020 14:47:26 +0200
Subject: [PATCH 2/2] don't touch my emoji

---
 lib/jpbuilder-handler.rb | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/jpbuilder-handler.rb b/lib/jpbuilder-handler.rb
index 0e3eda8..9658ac2 100644
--- a/lib/jpbuilder-handler.rb
+++ b/lib/jpbuilder-handler.rb
@@ -17,7 +17,6 @@ def self.call(template, source=nil)
         result = JbuilderTemplate.encode(self) do |json|
           #{source}
         end
-        result = result.each_char.to_a.map { |chr| chr.ord > 1000 ? "\\\\u\#{"%4.4x" % chr.ord}" : chr }.join
         callback = params[:callback] || JPbuilderHandler.default_callback
         if callback.present?
           "/**/\#{callback}(\#{result});"