OpenConext / OpenConext/OpenConext-engineblock

EB should set (strict) CSP headers on user-facing pages

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@baszoetekouw is already working on this.

Since Feb 10, 2026.

Dominant language
PHP
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Merged PRs (30d)
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Description

See:

  • #1331
  • #1332

The best solution would be to let EB set the CSP header instead of relying on webserver logic to insert the header ont eh correct pages.

Concretely, we would like this CSP:

content-security-policy: default-src 'none'; script-src 'self'; style-src 'self'; font-src 'self'; connect-src 'self'; img-src 'self' https://static.openconex.org http://localhost:* data:; form-action 'self'; frame-ancestors 'none'; base-uri 'none'

to be automatically included on all template-based pages, including (at least):

  • WAYF
  • consent
  • error screens
  • service request
  • metadata home screen

It should not be included on any pages producing XML (including SAML metadata, requests and assertions).

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