Set ssl verify to none.

app/models/site_feed.rb

@@ -109,6 +109,7 @@ class SiteFeed
         http_req = Net::HTTP.new(uri.host, uri.port)
         if self.remote_site_url.include?('https')
           http_req.use_ssl = true
+          http_req.verify_mode = OpenSSL::SSL::VERIFY_NONE
         end
         http_req.open_timeout = 10
         request = Net::HTTP::Post.new("/xhr/#{self.channel_key.pluralize}/feed_add_remote/#{self.feed_uid}", 'Content-Type' => 'application/json')
@@ -128,6 +129,7 @@ class SiteFeed
         http_req = Net::HTTP.new(uri.host, uri.port)
         if self.remote_site_url.include?('https')
           http_req.use_ssl = true
+          http_req.verify_mode = OpenSSL::SSL::VERIFY_NONE
         end
         http_req.open_timeout = 10
         request = Net::HTTP::Post.new("/xhr/#{self.channel_key.pluralize}/feed_remove_remote/#{self.feed_uid}", 'Content-Type' => 'application/json')