Jump to Line Fragment Should Ignore Line Numbers < 1

[r10r]

Description

When calling https://codeberg.org/Codeberg/gitea/src/branch/codeberg-1.17/README.md?display=source#L0 it is internally redirected to https://codeberg.org/Codeberg/gitea/src/branch/codeberg-1.17/README.md?display=source#undefined
which leads to the following javascript error:

JavaScript error: Uncaught TypeError: Cannot read properties of undefined (reading 'length') (https://codeberg.org/assets/js/index.js?v=1.17.3~87-ge4b8341 @ 83:11976). Open browser console to see more details.

Maybe line numbers < 1 can simply be ignored as github does:

https://github.com/go-gitea/gitea/blob/main/README.md?plain=1#L0

This would fix issues with links from external systems that don't check the line number properly.

Gitea Version

1.17.3

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?

helm chart

Database

PostgreSQL

[silverwind]

Reproduces on try.gitea.io as well:

https://try.gitea.io/silverwind/symlink-test/src/branch/master/test.txt#L0

Hitting the back button on the page produces more errors.

[silverwind]

#21728

[r10r]

@silverwind Thanks for addressing this so quickly!