Page Endpoint redirects with trailing slash always

[PatrickG]

Describe the bug

When trailingSlash is set to always, the /.../__data.json request gets redirected to /.../.

Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-xp9vnn

Click the Click me! link.

Logs

No response

System Info

Not relevant

Severity

serious, but I can work around it

Additional Information

To fix it, we need to subtract 1 from DATA_SUFFIX.length if options.trailing_slash === 'always' here:

kit/packages/kit/src/runtime/server/index.js

Line 62 in a72123a

decoded = decoded.slice(0, -DATA_SUFFIX.length) || '/';