Can't cache the POST request when do redirection

[scw00]

[mlibbey]

caching a POST? that's never been allowed.

[scw00]

proxy.config.http.cache.post_method dosen't work !

[zwoop]

Yeh, this feature has been there for a long time, but likely predates the follow redirect feature.

[bryancall]

@scw00 Do you want to work on this?

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community.