v1.5.30

• Handle comma separated X-Forwarded-{Header,Prefix}

  1. Proxies can technically set these headers with multiple comma separated
     values. For XF-Host header, we were dumping the entire value into the
     redirect thus creating invalid redirects like 301 https://host1, host2. With this change, we pick the leftmost comma separated value
     to use for setting the redirect host location.

  2. Add support for X-Forwarded-Prefix
     Also in the edge case there are multiple comma separated values,
     pick the leftmost.

  E.g.

  X-Forwarded-Host: host1, host2
  X-Forwarded-Prefix: /pre/fix1, /pre/fix2
  example.com/abc/def
  

  will resolve to 301 https://host1/pre/fix1/abc/def

  Fixes #280

Packaged binaries:

name	version	cf_stacks
nginx	1.20.2	cflinuxfs3
nginx	1.21.6	cflinuxfs3

Default binary versions:

name	version
nginx	1.21.x

• Uncached buildpack SHA256: bfd8ddeaf95b3aa1c26a525150ed5d4ba17b3b9863e017e75a246d3e07b6fd8b