WOFF 2 Setup Check Does Not Detect 404 Redirect on NGinx

[GuyPaddock]

Steps to reproduce

1. Set-up Nextcloud using the MariaDB NGinx Nextcloud Docker Compose example, checked-out to before the fix for Fix woff2 files in nginx examples docker#586 was committed (for example, https://github.com/nicokaiser/nextcloud-docker/tree/aa5c0c192995e98836fc3c5435119583a78bef62/.examples/docker-compose/insecure/mariadb/fpm).
2. Log-in to NextCloud.
3. Open the Admin settings overview page (/settings/admin/overview).

Expected behaviour

The following error message should appear:

Your web server is not properly set up to deliver .woff2 files. This is typically an issue with the Nginx configuration. For Nextcloud 15 it needs an adjustement to also deliver .woff2 files. Compare your Nginx configuration to the recommended configuration in our documentation.

Actual behaviour

• No error about WOFF 2 font loading appears. This appears to be because NGinx redirects the 404 error to index.php which returns a 200 OK, and therefore the config check thinks the font loaded.
• 29 "Failed to decode downloaded font" errors appear in the Chrome developer console.

Server configuration

Operating system: Debian Stretch
Web server: NGinx 1.15.9
Database: MariaDB
PHP version: 7.2.15
Nextcloud version: 15.0.5
Updated from an older Nextcloud/ownCloud or fresh install: Fresh install
Where did you install Nextcloud from: Docker

Client configuration

Browser: Chrome 72.0.3626.109 (Official Build) (64-bit)
Operating system: Windows 10 17763.316

Browser log

Browser log

JQMIGRATE: Migrate is installed, version 1.4.0
/data/.ocdata?t=1551744974085:1 Failed to load resource: the server responded with a status of 403 ()
44 Failed to decode downloaded font: <URL>
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular-latin-ext.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Regular.woff2
overview:1 Failed to decode downloaded font: https://example.com/core/fonts/Nunito-Bold.woff2
44 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag
overview:1 OTS parsing error: invalid version tag

[kesselb]

Ref #12734

cc @MorrisJobke

[MorrisJobke]

@GuyPaddock @kesselb Do you have any other idea to check that? Maybe load the file and check if the response starts with "wOF2" if converted to UTF-8?