[Bug]: <Form> navigation doesn't respect basename

[janovekj]

What version of React Router are you using?

6.4

Steps to Reproduce

CodeSandbox

Navigate to /basename/some-path in the sandbox browser window and click the submit button. This will trigger a navigation.

Expected Behavior

I would have expected the basename part of the URL to be preserved, and to stay at /basename/some-path

Actual Behavior

/basename is not preserved, app navigates to /some-path instead. To get the desired behavior, I must use the full URL to stay at the current route: <Form action="/basepath/some-path>

[brophdawg11]

Thanks for the bug report @janovekj! I just merged the fix for this - planning to get a prerelease out today and a stable 6.4.2 next week 👍

[janovekj]

Awesome, @brophdawg11! Super impressed with the speed at which this was fixed — thanks. I'll make sure to check out the prerelease!