Fix discord avatar URL

lib/discourse_chat/provider/discord/discord_provider.rb

@@ -21,6 +21,11 @@ module DiscourseChat
         return response
       end
 
+      def self.ensure_protocol(url)
+        return url if not url.start_with?('//')
+        return 'http:' + url
+      end
+
       def self.generate_discord_message(post)
 
         display_name = "@#{post.user.username}"
@@ -38,7 +43,7 @@ module DiscourseChat
             author:{
               name: display_name,
               url: Discourse.base_url+"/u/"+post.user.username,
-              # icon_url: post.user.small_avatar_url
+              icon_url: ensure_protocol(post.user.small_avatar_url)
             }
           }]
         }

spec/lib/discourse_chat/provider/discord/discord_provider_spec.rb

@@ -16,6 +16,14 @@ RSpec.describe DiscourseChat::Provider::DiscordProvider do
       expect(stub1).to have_been_requested.once
     end
 
+    it 'includes the protocol in the avatar URL' do
+      stub1 = stub_request(:post, 'https://discordapp.com/api/webhooks/1234/abcd?wait=true')
+                  .with(body: hash_including({embeds:[hash_including({author:hash_including({url:/^https?:\/\//})})]}))
+                  .to_return(status: 200)
+      described_class.trigger_notification(post, chan1)
+      expect(stub1).to have_been_requested.once 
+    end
+
     it 'handles errors correctly' do 
       stub1 = stub_request(:post, "https://discordapp.com/api/webhooks/1234/abcd?wait=true").to_return(status: 400)
       expect(stub1).to have_been_requested.times(0)