poniendo el correcto protocolo y quitando excepcion para mac

Gemfile

@@ -30,7 +30,7 @@ gem 'jquery-ui-rails'
 gem 'levenshtein-ffi', :require => 'levenshtein'
 gem 'mail'
 gem 'mime-types'
-gem 'mini_racer', github: 'rubyjs/mini_racer', branch: 'refs/pull/186/head'
+gem 'mini_racer', git: 'https://github.com/rubyjs/mini_racer', branch: 'refs/pull/186/head'
 gem 'mysql2'
 gem 'nokogiri', '>= 1.10.8'  # Hacer un parse con xml
 gem 'pg'
@@ -54,6 +54,7 @@ gem 'soulmate', :require => 'soulmate/server'
 gem 'turbolinks', '~> 5'  # Hace mas rapidos los links
 gem 'trollop'
 gem 'uglifier'
+gem 'vinted-blurrily', :require => 'blurrily/server.rb'   # Forza a blurrily a usar rails mayor al 4
 gem 'wash_out'
 gem 'whenever', :require => false
 gem 'wicked_pdf'
@@ -65,10 +66,6 @@ group :doc do
   gem 'sdoc', require: false
 end
 
-group :development, :test, :production do
-  gem 'vinted-blurrily', :require => 'blurrily/server.rb'   # Forza a blurrily a usar rails mayor al 4
-end
-
 group :development, :development_mac, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]

Gemfile.lock

@@ -1,11 +1,3 @@
-GIT
-  remote: git://github.com/rubyjs/mini_racer.git
-  revision: 2838212bdf1f545b28d93975cc413d5677dd8901
-  branch: refs/pull/186/head
-  specs:
-    mini_racer (0.3.1)
-      libv8-node (~> 15.12.0.0.beta1)
-
 GIT
   remote: https://github.com/calonsot/ancestry.git
   revision: bfadb2c7ff9813825ce1d5648a06fdb1589f56ef
@@ -24,6 +16,14 @@ GIT
       rest-client
       rubyzip (~> 1.0)
 
+GIT
+  remote: https://github.com/rubyjs/mini_racer
+  revision: 2838212bdf1f545b28d93975cc413d5677dd8901
+  branch: refs/pull/186/head
+  specs:
+    mini_racer (0.3.1)
+      libv8-node (~> 15.12.0.0.beta1)
+
 GEM
   remote: https://rubygems.org/
   specs: