diff --git a/src/main.js b/src/main.js
index 26b09c57..cdeeb037 100644
--- a/src/main.js
+++ b/src/main.js
@@ -13,6 +13,7 @@ const path = require('path');
 var settings = require('./common/settings');
 var certificateStore = require('./main/certificateStore').load(path.resolve(app.getPath('userData'), 'certificate.json'));
 var appMenu = require('./main/menus/app');
+const allowProtocolDialog = require('./main/allowProtocolDialog');
 
 var argv = require('yargs').argv;
 
@@ -154,47 +155,7 @@ app.on('login', function(event, webContents, request, authInfo, callback) {
   mainWindow.webContents.send('login-request', request, authInfo);
 });
 
-ipc.on('confirm-protocol', (event, protocol, URL) => {
-  const allowedProtocolFile = path.resolve(app.getPath('userData'), 'allowedProtocols.json')
-  fs.readFile(allowedProtocolFile, 'utf-8', (err, data) => {
-    var allowedProtocols = [];
-    if (!err) {
-      allowedProtocols = JSON.parse(data);
-    }
-    if (allowedProtocols.indexOf(protocol) !== -1) {
-      require('shell').openExternal(URL);
-    }
-    else {
-      electron.dialog.showMessageBox(mainWindow, {
-        title: 'Non http(s) protocol',
-        message: `${protocol} link requires an external application.`,
-        detail: `The requested link is ${URL} . Do you want to continue?`,
-        type: 'warning',
-        buttons: [
-          'Yes',
-          `Yes (Save ${protocol} as allowed)`,
-          'No'
-        ],
-        cancelId: 2,
-        noLink: true
-      }, (response) => {
-        switch (response) {
-          case 1:
-            allowedProtocols.push(protocol);
-            fs.writeFile(allowedProtocolFile, JSON.stringify(allowedProtocols), (err) => {
-              if (err) console.error(err);
-            });
-            // fallthrough
-          case 0:
-            require('shell').openExternal(URL);
-            break;
-          default:
-            break;
-        }
-      });
-    }
-  });
-});
+allowProtocolDialog.init(mainWindow);
 
 // This method will be called when Electron has finished
 // initialization and is ready to create browser windows.
diff --git a/src/main/allowProtocolDialog.js b/src/main/allowProtocolDialog.js
new file mode 100644
index 00000000..24bca268
--- /dev/null
+++ b/src/main/allowProtocolDialog.js
@@ -0,0 +1,61 @@
+'use strict';
+
+const {
+  app,
+  dialog,
+  ipcMain
+} = require('electron');
+const path = require('path');
+const fs = require('fs');
+
+const allowedProtocolFile = path.resolve(app.getPath('userData'), 'allowedProtocols.json')
+var allowedProtocols = [];
+
+function init(mainWindow) {
+  fs.readFile(allowedProtocolFile, 'utf-8', (err, data) => {
+    if (!err) {
+      allowedProtocols = JSON.parse(data);
+    }
+    initDialogEvent(mainWindow);
+  });
+}
+
+function initDialogEvent(mainWindow) {
+  ipcMain.on('confirm-protocol', (event, protocol, URL) => {
+    if (allowedProtocols.indexOf(protocol) !== -1) {
+      require('shell').openExternal(URL);
+      return;
+    }
+    dialog.showMessageBox(mainWindow, {
+      title: 'Non http(s) protocol',
+      message: `${protocol} link requires an external application.`,
+      detail: `The requested link is ${URL} . Do you want to continue?`,
+      type: 'warning',
+      buttons: [
+        'Yes',
+        `Yes (Save ${protocol} as allowed)`,
+        'No'
+      ],
+      cancelId: 2,
+      noLink: true
+    }, (response) => {
+      switch (response) {
+        case 1:
+          allowedProtocols.push(protocol);
+          fs.writeFile(allowedProtocolFile, JSON.stringify(allowedProtocols), (err) => {
+            if (err) console.error(err);
+          });
+          // fallthrough
+        case 0:
+          require('shell').openExternal(URL);
+          break;
+        default:
+          break;
+      }
+    });
+  });
+}
+
+module.exports = {
+  init: init
+};