Importing a non image URL freezes the entire app

[Kalbskinder]

This issue is unique.

• I have used the search tool and did not find an issue describing my bug.

Operating System

Linux

Architecture

x86_64

Package Type

deb

Version information

9.2.1.43

Expected Behavior

When setting the background image of a slide by pasting an invalid URL that does not return a file, an error should be shown and the HTTP request should be interrupted

Actual Behavior

When pasting a URL to set a slides background image, for example https://example.com/images/ instead of https://example.com/images/test.png, the entire application freezes until it eventually crashes.

Reproduction Steps

1. Create a new slide inside a presentation
2. Open slide settings (right sidebar)
3. Change background from Color to Picture or Texture
4. Click Select picture -> From URL
5. Paste in a URL that does not return an image file when fetched
6. Click OK

Additional information

No response