diff --git a/lib/github-auth.js b/lib/github-auth.js
index 7827fce..f7d06a6 100644
--- a/lib/github-auth.js
+++ b/lib/github-auth.js
@@ -60,38 +60,11 @@ function setRoutes(server) {
       }
       console.log('GitHub OAuth: ' + token);
 
-      // FIXME: synchronize things in the background.
-      // Send the token to all of those IPs.
-      var ips = serverSecrets.shieldsIps;
-      Promise.all(ips.map(function(ip) {
-        return new Promise(function(resolve, reject) {
-          var options = {
-            url: 'https://' + ip + '/github-auth/add-token',
-            method: 'POST',
-            form: {
-              shieldsSecret: serverSecrets.shieldsSecret,
-              token: token,
-            },
-            // We target servers by IP, and we use HTTPS. Assuming that
-            // 1. Internet routers aren't hacked, and
-            // 2. We don't unknowingly lose our IP to someone else,
-            // we're not leaking people's and our information.
-            // (If we did, it would have no impact, as we only ask for a token,
-            // no GitHub scope. The malicious entity would only be able to use
-            // our rate limit pool.)
-            // FIXME: use letsencrypt.
-            strictSSL: false,
-          };
-          request(options, function(err, res, body) {
-            if (err != null) { return reject('Posting the GitHub user token failed: ' + err.stack); }
-            resolve();
-          });
-        });
-      })).then(function() {
-        end('Done!');
-      }).catch(function(e) {
+      end('Done!');
+
+      sendTokenToAllServers(token)
+      .catch(function(e) {
         console.error('GitHub user token transmission failed:', e);
-        end('Horror! Something went wrong. Please try again.');
       });
     });
   });
@@ -110,4 +83,33 @@ function setRoutes(server) {
   });
 };
 
+function sendTokenToAllServers(token) {
+  var ips = serverSecrets.shieldsIps;
+  return Promise.all(ips.map(function(ip) {
+    return new Promise(function(resolve, reject) {
+      var options = {
+        url: 'https://' + ip + '/github-auth/add-token',
+        method: 'POST',
+        form: {
+          shieldsSecret: serverSecrets.shieldsSecret,
+          token: token,
+        },
+        // We target servers by IP, and we use HTTPS. Assuming that
+        // 1. Internet routers aren't hacked, and
+        // 2. We don't unknowingly lose our IP to someone else,
+        // we're not leaking people's and our information.
+        // (If we did, it would have no impact, as we only ask for a token,
+        // no GitHub scope. The malicious entity would only be able to use
+        // our rate limit pool.)
+        // FIXME: use letsencrypt.
+        strictSSL: false,
+      };
+      request(options, function(err, res, body) {
+        if (err != null) { return reject('Posting the GitHub user token failed: ' + err.stack); }
+        resolve();
+      });
+    });
+  }));
+}
+
 exports.setRoutes = setRoutes;