Large GIFs cause Umbraco on Azure Web App to restart when resizing in media section

[karltynan]

Which Umbraco version are you using? (Please write the exact version, example: 10.1.0)

13.4.1

Bug summary

I have an Umbraco website running on Azure Web App (Linux). When I upload a large GIF image to the media section, the website crashes and restarts. I think this is because the media section resizes for previewing media items, as I do not allow GIFs to be resized on the front-end.

I have also tested this on Azure Web App (Windows) to see if it is Linux-specific or Umbraco-specific. I can confirm the issue is also on Windows.

1. Is there a known issue for this?
2. Perhaps there is a workaround to stop it resizing of GIFs in the media section?
3. Can I restrict media image types allowed to upload?

Specifics

• The Azure Web App (Linux) and database far exceed the minimum requirements needed to run Umbraco
• I have tried with 2mb GIFs and it struggles, but eventually got there with very high-priced Web App plan (not financially viable)
• I have tried with larger (10mb+ GIFs) and it kills the website
• May be specific to Linux, but currently trialling on Windows

Steps to reproduce

1. Publish an Umbraco 13.4.1 website to an Azure Web App (Linux)
2. Try to upload a GIF that is quite large (or view a previously uploaded GIF that caused a restart) in media section
3. App crashes/restarts

Expected result / actual result

The Umbraco website should not crash or restart when uploading large GIF images to the media section, or when previewing large GIFs in the media section.