diff --git a/conf/configs/common.py b/conf/configs/common.py
index 103af53..62237ce 100644
--- a/conf/configs/common.py
+++ b/conf/configs/common.py
@@ -142,6 +142,7 @@
 CSRF_COOKIE_SECURE = os.environ.get('MYPROJECT_CSRF_COOKIE_SECURE', 'True') == 'True'
 SESSION_COOKIE_SECURE = os.environ.get('MYPROJECT_SESSION_COOKIE_SECURE', 'True') == 'True'
 ALLOWED_HOSTS = os.environ.get('MYPROJECT_ALLOWED_HOSTS', '').split(' ')
+CSRF_TRUSTED_ORIGINS = [PROJECT_HOST]
 
 # Logging
 
diff --git a/conf/configs/dev.py b/conf/configs/dev.py
index f9218fd..8b0632e 100644
--- a/conf/configs/dev.py
+++ b/conf/configs/dev.py
@@ -40,6 +40,16 @@
     '127.0.0.1',
 )
 
+ALLOWED_HOSTS = common.ALLOWED_HOSTS + [
+    '.ngrok.io',
+    '.ngrok.app'
+]
+
+CSRF_TRUSTED_ORIGINS = common.CSRF_TRUSTED_ORIGINS + [
+    'https://*.ngrok.io',
+    'https://*.ngrok.app'
+]
+
 # Logging
 
 LOGGING = {
diff --git a/myproject/auth/services/authservice.py b/myproject/auth/services/authservice.py
index 697b8ea..390de4d 100644
--- a/myproject/auth/services/authservice.py
+++ b/myproject/auth/services/authservice.py
@@ -7,6 +7,7 @@
 
 import logging
 
+from django.apps import apps
 from django.conf import settings
 from django.contrib.auth import authenticate, login, logout, get_user_model
 from django.urls import reverse
@@ -30,7 +31,7 @@ def process_register(request, user):
     emailutils.send_multipart_email('email/register',
                                     {
                                         'PROJECT_NAME': settings.PROJECT_NAME,
-                                        'site_url': settings.PROJECT_HOST,
+                                        'site_url': apps.get_app_config('common').PROJECT_HOST,
                                         'login_url': reverse('login'),
                                     },
                                     f'Welcome to {settings.PROJECT_NAME}', [user.email],
@@ -109,7 +110,7 @@ def process_forgot_password(request):
         emailutils.send_multipart_email('email/forgot',
                                         {
                                             'password': password,
-                                            'site_url': settings.PROJECT_HOST,
+                                            'site_url': apps.get_app_config('common').PROJECT_HOST,
                                             'settings_url': reverse('settings')
                                         },
                                         'Your Password Has Been Reset', [email])
diff --git a/myproject/common/apps.py b/myproject/common/apps.py
index e97a779..ff5cff9 100644
--- a/myproject/common/apps.py
+++ b/myproject/common/apps.py
@@ -13,6 +13,8 @@ class CommonConfig(AppConfig):
     name = 'myproject.common'
     verbose_name = 'Common'
 
+    PROJECT_HOST = settings.PROJECT_HOST
+
     def ready(self):
         if settings.USE_NGROK and os.environ.get("NGROK_AUTHTOKEN"):
             # pyngrok will only be installed, and should only ever be initialized, in a dev environment
@@ -28,7 +30,7 @@ def ready(self):
             print(f"ngrok tunnel \"{public_url}\" -> \"http://127.0.0.1:{port}\"")
 
             # Update any base URLs or webhooks to use the public ngrok URL
-            settings.PROJECT_HOST = public_url
+            self.PROJECT_HOST = public_url
             CommonConfig.init_webhooks(public_url)
 
     @staticmethod