Need Help Finalizing My Django-Based Research Study App (CSRF Issue)

Hey Dev Community! 👋

I'm working on a Django-based web application for a university research study that explores passphrases across different languages. I’ve built most of the core functionality, but I’ve hit a blocker I can't seem to solve and could use your help.

🧠 Project Background

This is a user study platform (academic) where participants:

• Log in or sign up
• Consent to a study
• Complete a series of language-based passphrase tasks

We use Django 5.2.1, and the app has:

• Allauth (for auth, but only the backend currently)
• Custom user flow
• Consent form
• Task-based progression (task1 → task2, etc.)

❗ Problem I'm Facing

After logging in (especially in a fresh or different browser), when the user clicks “Start the Study”, they hit this:
403 Forbidden: CSRF verification failed. Request aborted.

Despite having:

• {% csrf_token %} in the form
• CsrfViewMiddleware active
• Proper CSRF_TRUSTED_ORIGINS and ALLOWED_HOSTS
• Cookies confirmed in the browser
• get_token(request) and @csrf_protect used

Still, the form POST fails on that "Start the Study" step.

✅ What Works

• Viewing the home page after login also works.
• Form displays the token correctly.
• CSRF cookie is generated.
• If I refresh or re-login, it sometimes works — it's inconsistent.

💡 What I Think Might Help

• Guidance on how to persist CSRF token between views properly?
• Is get_token(request) necessary in views?
• Anything to check in my session/cookie setup?

🔗 Project Info

• Python 3.11 / Django 5.2.1
• SQLite (for now)
• Hosted locally (localhost:8000)
• CSRF Cookie: Lax, Secure = False (for dev)
• CSRF token is present in the form

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📂 Want to Help?

If you’re interested in helping me wrap this up:

• I am happy to discuss more via comments here!

Thank you in advance 🙏 — this is part of a real academic research study, so your contribution has meaningful impact!

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P.S.: If you’ve solved a similar issue before, please drop some wisdom! I’ve debugged it for hours and feel close… but not quite there.