opensafely-core / opensafely-core/opencodelists

Following login, users may see a 403 error due to CSRF verification

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#1,879 4 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Python
Stars
60
Forks
16
Avg merge
4d 12h
Merged PRs (30d)
17

Description

…frequently when I login to OpenCodelists I get the following error. It does log me in, but I have to navigate back to the homepage.

https://bennettoxford.slack.com/archives/C01D7H9LYKB/p1709739999212329

The error is a 403 CSRF verification failed. Request aborted.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the login flow described in the issue and inspect the circumstances around the 403 CSRF verification failure. Use the linked Slack report and the existing issue comments as context, then define done as completing login without the CSRF error or requiring navigation back to the homepage.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
authentication, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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