Session cookie encoding

In the response to a client request, HCP includes a cookie that contains encoded session information.

HCP supports two formats for encoding the session cookie:

  • RFC2109

    HCP used only this format in releases 5.0 and earlier.

  • RFC6265

    HCP has used this format by default in all releases since 5.0.

You can use the X-HCP-CookieCompatibility request header to specify the format HCP should use to encode the session cookie. Valid values for this header are RFC2109 and RFC6265.

The X-HCP-CookieCompatibility header is:

  • Optional and typically not used for RFC6265
  • Required for RFC2109