Stripe checkout unable to access my django apps success page on heroku - django

Question

I am a relatively inexperienced python/django programmer and have run into a issue that i am unable to resolve on my own, inspite of searching around for help. English is not my first language so please do not mind language related errors in my attempt to explain my problem.
My django 3.2 App uses stripe checkout for payment. While in development on my local machine, i could process payment and return to my apps success page, but after i deployed it to heroku, it processes the payment but wont return to my apps success page. I have installed the corsheaders package and have tried all the possible settings suggested here on stackoverflow and elsewhere. I am stating my settings below and also the stripe checkout views code. Any help will be highly appreciated.
all the relevant settings are as under
BASE_DIR = Path(__file__).resolve().parent.parent
ALLOWED_HOSTS = ['*']
CORS_ORIGIN_ALLOW_ALL = True
CSRF_COOKIE_SECURE = True
SESSION_COOKIE_SECURE = True
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
# 3rd party
'rest_framework',
'corsheaders',
'crispy_forms',
'sorl.thumbnail',
'cloudinary',
'storages',
# local
'accounts.apps.AccountsConfig',
'main.apps.MainConfig',
'api.apps.ApiConfig',
'cart.apps.CartConfig',
'payment.apps.PaymentConfig',
'order.apps.OrderConfig',
'setmenu.apps.SetmenuConfig',
]
MIDDLEWARE = [
'corsheaders.middleware.CorsMiddleware',
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [str(BASE_DIR.joinpath('templates'))],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
core.urls.py
urlpatterns = [
path('admin/', admin.site.urls),
path('accounts/', include('accounts.urls')),
path('accounts/', include('django.contrib.auth.urls')),
path('api/v1/', include('api.urls')),
path('cart/', include('cart.urls', namespace='carturls')),
path('setmenu/', include('setmenu.urls', namespace='setmenu')),
path('orders/', include('order.urls', namespace='orders')),
path('payment/', include('payment.urls', namespace='payment')),
path('', include('main.urls', namespace='main')),
]
payment urls.py
app_name = 'payment'
urlpatterns = [
path('process/', login_required(views.payment_process), name='process'),
path('done/', views.payment_done, name='done'),
path('canceled/', views.payment_canceled, name='canceled'),
path('webhook/', views.webhook, name='webhook')
]
Payment apps view that processes payment
def payment_process(request):
order_id = request.session.get('order_id')
order = get_object_or_404(Order, id=order_id)
total_cost = int(order.get_total_amount() * 100)
session = stripe.checkout.Session.create(
line_items=[{
'price_data': {
'currency': 'inr',
'product_data': {
'name': f'Order number {order_id}',
},
'unit_amount': f'{total_cost}',
},
'quantity': 1,
}],
mode='payment',
success_url='https://myappname.herokuapp.com/payment/done',
cancel_url='https://myappname.herokuapp.com/payment/canceled',
)
return redirect(session.url, code=303)
even if i put a done/ it doesnt redirect. The below success urls work though and i am redirect to my home page and the admin page respectively.
success_url='https://myappname.herokuapp.com'
and
success_url='https://myappname.herokuapp.com/admin'
But ofcourse, ideally it has to return to the specific success page. The fact that it successfully redirects to https://myappname.herokuapp.com/admin, bothers me even more as to why it wont go to https://myappname.herokuapp.com/payment/done
I have tried to discard the payment urls and dump the payment routes in the core urls thinking that its not accessing custom namespaced urls, but that too did not work.
Please do point me to the right direction. I am inclined to think that my Cors settings are not right but then i have allowed all hosts and cors_origin_allow_all is true.The corsheaders middleware is also at the top as suggested but yet its not redirecting from stripe. So i feel like i have hit a wall.
Thanks a lot for your help