Some files are recognized as SVG incorrectly, make the diff UI unable to work.

[stuzer05]

Description

When certain conditions are met gitea can't display the blade.php file diff when viewing the commit. It only works when I click "View source button". Second link is taken from network, it is causing the crash.

https://try.gitea.io/stuzer05/test-preview/commit/f97b3784f8c8efc222128f6dffd4e5abb5fda462
https://try.gitea.io/stuzer05/test-preview/raw/commit/e2f752e123151fea55959571d56d57462025f0f6/test.blade.php

Gitea Version

1.17.0

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

Docker

Database

No response

[wxiaoguang]

The file was recognized as SVG incorrectly.

https://try.gitea.io/stuzer05/test-preview/raw/commit/e2f752e123151fea55959571d56d57462025f0f6/test.blade.php

Response header:

content-type | image/svg+xml

[lunny]

By the extension name, it's not a svg file.