fix: redirectLocation can get location of Permanent Redirect

[tmccombs]

Previously, if the result was a 308 Permanent Redirect, then redirectLocation(result) would return None.

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Helpful things

Purpose

Add support for using play.api.test.Helpers.redirectLocation to get the location of a "Permanent Redirect" (status code 308).

Background Context

It follows the same pattern as other types of redirects.

[mkurz]

@tmccombs Tests are failing, please check (I also force pushed your branch, so you should pull before), thanks!

[tmccombs]

On the surface those errors seem unrelated to my changes.

[tmccombs]

yeah, these errors really don't seem related to my change. Could it be a flaky build?

[mkurz]

@Mergifyio backport 2.9.x

[mergify]

backport 2.9.x

✅ Backports have been created

• #12265 [2.9.x] fix: redirectLocation can get location of Permanent Redirect (backport #12223) by @tmccombs has been created for branch 2.9.x