Disable Certificate Transparency verification

src/main.js

@@ -14,6 +14,7 @@ const os = require('os');
 const path = require('path');
 const isDev = require('electron-is-dev');
 const installExtension = require('electron-devtools-installer');
+const semver = require('semver');
 const squirrelStartup = require('./main/squirrelStartup');
 const CriticalErrorHandler = require('./main/CriticalErrorHandler');
 
@@ -610,6 +611,20 @@ app.on('ready', () => {
   permissionManager = new PermissionManager(permissionFile, trustedURLs);
   session.defaultSession.setPermissionRequestHandler(permissionRequestHandler(mainWindow, permissionManager));
 
+  // Disable Certificate Transparency until Electron 1.8.3
+  // due to https://github.com/electron/electron/issues/11997
+  if (semver.lt(process.versions.electron, '1.8.3')) {
+    const SUCCESS_AND_DISABLE_CERTIFICATE_TRANSPARENCY = 0;
+    const USE_VERIFICATION_RESULT_FROM_CHROMIUM = -3;
+    session.defaultSession.setCertificateVerifyProc((request, callback) => {
+      if (request.verificationResult === 'net::OK') {
+        callback(SUCCESS_AND_DISABLE_CERTIFICATE_TRANSPARENCY);
+      } else {
+        callback(USE_VERIFICATION_RESULT_FROM_CHROMIUM);
+      }
+    });
+  }
+
   // Open the DevTools.
   // mainWindow.openDevTools();
 });