Images downloaded from TikTok cannot be viewed in the Plain app.

[thesh1xx]

Describe the bug
Images downloaded from TikTok cannot be viewed in the Plain app, as the application fails to load them and shows an error when opened, even though the images initially appear normally in the preview for a brief moment.

To Reproduce
Steps to reproduce the issue:

1. Download any image from TikTok to your phone.
2. Start the PlainApp service on your phone.
3. Try to view the downloaded TikTok images in the app.
4. An error appears.

Expected behavior
Images downloaded from TikTok should display normally, just like any other images.

Screenshots
I added an example of the issue.

Desktop (please complete the following information):
OS: Windows 11 23H2
Browsers tested: Zen 1.17.7b (Firefox 145.0), Chrome 142.0.7444.163

Smartphone (please complete the following information):
Device: Xiaomi 13 (fuxi), model 2211133G
OS: HyperOS 2.0.201.0 (Android 15)
App Version: 2.1.20

Additional context
The image appears correctly in the web interface preview and is briefly visible for about half a second in the app before the error appears.

[ismartcoding]

@thesh1xx I don’t use TikTok. Could you send an image to ismartcoding@gmail.com so I can try it out?

[ismartcoding]

Actually, this is not a PNG file. Chrome doesn’t support this image format. The file info shows:
1000156296.png: ISO Media, HEIF Image, HEVC Main or Main Still Picture Profile.
Safari can display it, but Chrome cannot. I will try to find a solution to handle this.

➜  Downloads file 1000156296.png
1000156296.png: ISO Media, HEIF Image HEVC Main or Main Still Picture Profile