File Browser Preview Image error

[falkvw]

Bug Report

File Browser Preview Image is not loaded, as is 404. We have installes directus in a folder unter root Domain, so its at www.example.com/drt/. The File Browser preview image tries to load images at www.example.com/api/assets... so it is missing the /drt/ folder in the url.
I have added the full www.example.com/drt/ as project and app url. Image detail pages loads the right image urls including /drt/

Steps to Reproduce

1. Go to File Browser
2. See error preview images

Expected Behavior

See image previews in list

Actual Behavior

See image preview error files

Other Context & Screenshots

Technical Details

• Device: [Desktop]
• OS: [MacOS 10.13.6]
• Web Server: [Apache 2.4.29]
• PHP Version: [7.2.0]
• Database: [10.3.22-MariaDB-1:10.3.22]
• Directus Release Version: [v8.5.4]
• Install Method: [cloned master branch]

[rijkvanzanten]

@falkvw What does your storage configuration for the API look like? Most importantly the root_url key under storage

[falkvw]

'root' => 'public/uploads//originals',
// This is the url where all the media will be pointing to
// here is where Directus will assume all assets will be accessed
// Ex: (yourdomain)/uploads//originals
'root_url' => '/uploads//originals',
// Same as "root", but for the thumbnails
'thumb_root' => 'public/uploads//thumbnails',

Tried to set 'root_url' => '/drt/uploads/_/originals', but did not fix the issue
Preview tries to access via /api/assets/rfywbspyxf4o0oow?key=directus-medium-contain instead of /drt/api/assets/rfywbspyxf4o0oow?key=directus-medium-contain

[falkvw]

Image Preview in Element file list is without error and including /drt/: /drt/api/assets/k1217asguyo4sc8o?key=directus-small-crop