No more thumbnail for ggs files

[wkloucek]

Describe the bug

ownCloud Web UI 10.2.0 is not doing thumbnail requests for ggs files.

Steps to reproduce

1. use eg. https://ocis.ocis.rolling.owncloud.works/
2. upload a ggs file

Expected behavior

See a thumbnail as it's the case with earlier versions of oCIS / Web

Actual behavior

No thumbnail is shown

[AlexAndBear]

What exactly is a ggs file? Could You provide an example file and/or a mime type ?

[kulmann]

What exactly is a ggs file? Could You provide an example file and/or a mime type ?

See owncloud/ocis#7768 - the issue includes an example file. We're talking about Geogebra slides files... you can build your own file here https://tafel.mebis.bycs.de and download it as .ggs file in the left hand expandable menu.