Add support for Plug.RewriteOn to rewrite nonstandard headers #1272
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Some HTTPS proxies use nonstandard headers. For example, AWS CloudFront uses the
CloudFront-Forwarded-Proto
which cannot be changed.This PR keeps the existing rewrite functionality and extends it with the ability to specify custom header names, e.g.
:x_forwarded_proto
could be specified as{:scheme, "CloudFront-Forwarded-Proto"}
in this case.