Created by: asbermudez
Have found that in some scenarios the proxied server does return invalid characters in the headers, like here: https://github.com/nodejs/node/issues/21509
In the current version the proxy does break when a invalid character is found with a
[ERR_INVALID_CHAR]: Invalid character in header content
This PR aims to avoid the total crash of the application and instead show a warning in the console and process all what can be processed.