Remove the host header on redirect

[MittWillson]

Checklist

• I have read the documentation.
• I have included a pull request description of my changes.
• I have included some tests.
• If it's a new feature, I have included documentation updates.

Fixes #1240

[szmarczak]

This is missing a test

[MittWillson]

@satazor I tested it again, i was wrong, this is not an issue, sorry

[MittWillson]

This is missing a test

Hi, i tryied debug agian for reason, and i found why, host in options.headers replaced the finnal reuqest, is this a bug or feature?

if it is not a bug, i'll reclose this PR

thanks

[szmarczak]

This is definitely a bug. Nice one! I'll look into this tomorrow, it's quite late here.

[MittWillson]

@szmarczak sure, and glad to hear that :)

[szmarczak]

Nice one, thanks! 🙌