strtolower() expects parameter 1 to be string, array given

[DangerLifter]

Got an exception: strtolower() expects parameter 1 to be string, array given in /http-client/src/Response.php:36

Test url with problem: http://mosmama.info/org/user/2275/contact

Issues happens because header "transfer-encoding" contains "Transfer-Encoding: chunked, chunked"
Browser "Firefox" processes this case correctly.

[clue]

Thank you for reporting, I can confirm that there's an issue in this library 👍

The Response class should not report an error here and try to handle this situation in a sane way as per RFC 7230: https://tools.ietf.org/html/rfc7230#section-3.3.3

Note that this URL you've provided is indeed "invalid" as it actually uses double encoded chunks, so this doesn't render properly in Firefox or any other HTTP client either. As per the HTTP specs the HTTP client should interpret one such encoding and thus return a response that is still encoded once.

It may take a while before I get to look into this, so any help with addressing this is much appreciated