Help getting a requirement using OSLC and Global Configurations

 I am trying to get a Requirements data using OSLC and Global Configurations.

I know that if I use the direct link to an item, eg:

https://Svr:9443/rm/resources/TX_vyxJkSjjEeuLj_u8pP3M9Q

and set my Request Headers to:

OSLC-Core-Version = 2.0

Accept = Application/rdf+xml

I get the OLSC Resource data.  If I don’t include the Accept header, this will open the item in the DOORS Web Interface.

Now if I try and do the same for a Requirement that is in a Global Configuration and add the oslc_config.context parameter to the URL, eg:

https://Svr:9443/rm/resources/TX_vyxJkSjjEeuLj_u8pP3M9Q?oslc_config.context=https%3A%2F%2FSvr %3A9443%2Frm%2Fcm%2Fstream%2F_u8rPECjjEeuLj_u8pP3M9Q

I get an ERR_INVALID_RESPONSE but by removing the Accept = Application/rdf+xml I do get the Resource Data back in rdf+xml format. 

Is this a bug or am I trying to access OLSC data for a Resource in a Global Configuration incorrectly?