From 0592c59174bfb2cbb2b96f62297963c9a6c1bb60 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 14 Mar 2026 09:07:17 +0000
Subject: [PATCH] fix(ui): add missing suggested_languages global to error
 templates

The error templates (404.html, 500.html) extend base.html which uses
{{ suggested_languages | tojson }} in the language selector dropdown.
The _error_templates instance in app/main.py was missing this global,
causing Jinja2 Undefined objects to be passed to the tojson filter,
resulting in "TypeError: Object of type Undefined is not JSON serializable"
errors in 35 tests.

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
---
 app/main.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/main.py b/app/main.py
index 6089699b..72b0155c 100644
--- a/app/main.py
+++ b/app/main.py
@@ -267,6 +267,7 @@ _error_templates.env.globals["_"] = lambda key, **kwargs: _translate_fn(key, "en
 _error_templates.env.globals["min"] = min
 _error_templates.env.globals["max"] = max
 _error_templates.env.globals["supported_languages"] = _SUPPORTED_LANGUAGES
+_error_templates.env.globals["suggested_languages"] = []
 
 
 @app.exception_handler(HTTPException)