🐛 403 redirect to a 404 on prod environment

[AntoLC]

Bug Report

https://docs.numerique.gouv.fr/docs/[DOC_ID]/403/ is not intercepted by the Nginx regexp, leading to a redirect to a 404 page during reload.

docs/src/frontend/apps/impress/conf/default.conf

Lines 14 to 19 in 773b150

	location ~ "^/docs/[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}/?$" {
	try_files $uri /docs/[id]/index.html;
	add_header X-Frame-Options DENY always;
	}

Possible solution

Remove the 403 page, display a 403 on the current url https://docs.numerique.gouv.fr/docs/[DOC_ID]/.
Add as well meta if error status:

<meta name="robots" content="noindex" />
<link rel="canonical" href={`/docs/${docId}`} />