datasette/datasette/templates/csrf_error.html
Simon Willison 0b639a8122
Replace token-based CSRF with Sec-Fetch-Site header protection (#2689)
- New CSRF protection middleware inspired by Go 1.25 and research by Filippo Valsorda - https://words.filippo.io/csrf/ - this replaces the old CSRF token based protection.
- Removes all instances of `<input type="hidden" name="csrftoken" value="{{ csrftoken() }}">` in the templates - they are no longer needed.
- Removes the `def skip_csrf(datasette, scope):` plugin hook defined in `datasette/hookspecs.py` and its documentation and tests.
- Updated CSRF protection documentation to describe the new approach.
- Upgrade guide now describes the CSRF change.
2026-04-14 17:11:36 -07:00

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HTML

{% extends "base.html" %}
{% block title %}CSRF check failed{% endblock %}
{% block content %}
<h1>Form origin check failed</h1>
<p>Your request's origin could not be validated. Please return to the form and submit it again.</p>
<details><summary>Technical details</summary>
<p>Developers: consult Datasette's <a href="https://docs.datasette.io/en/latest/internals.html#csrf-protection">CSRF protection documentation</a>.</p>
<p>Reason: {{ reason }}</p>
</details>
{% endblock %}