Dominic R abdff1c877 flows: preserve signed background URLs in CSS (#21868)
* flows: preserve signed background URLs in CSS

Flow background URLs can include signed S3 query parameters with & separators. These values are rendered inside <style> tags, where Django autoescaping changes & to &amp;; browsers then request the literal escaped query string from S3, causing 400 responses for presigned background images.

Mark the flow background URL values as safe in the CSS-only template contexts used by the standard flow interface, the SFE flow page, and the full-screen login background. Regression coverage asserts that signed URL query separators are preserved in the rendered CSS for both standard and SFE flows.

Co-authored-by: Codex <codex@openai.com>

* flows: preserve signed background URLs in CSS

* fix unrelated test

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Co-authored-by: Codex <codex@openai.com>
2026-04-30 07:53:41 -04:00
2026-04-27 01:08:32 +02:00
2026-04-27 01:08:32 +02:00
2026-04-27 01:08:32 +02:00
2026-03-31 11:33:46 +02:00
2025-09-02 21:38:53 +00:00
2026-04-27 01:08:32 +02:00
2026-04-27 01:08:32 +02:00
2025-10-24 19:01:42 +02:00

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