If the request that we have to proxy already has an IP in the `X-Forwarded-For` header the concatenation is wrong Example instead of ``` 1.1.1.1, 8.8.8.8 ``` It forwards ``` 1.1.1.18.8.8.8 ``` Example: https://play.golang.org/p/lVQNcaZ_kmy
If the request that we have to proxy already has an IP in the
X-Forwarded-Forheader the concatenation is wrongExample instead of
It forwards
Example:
https://play.golang.org/p/lVQNcaZ_kmy