a0d929ca_WSRP_v2_0_Specification__Statement_text
[#] CS135 [Section] 9.2.1.1.1 [Statement text] 
All form parameters, submitted as query string parameters using the HTTP GET method, that are not used to encode parameters defined by this specification MUST be passed to performBlockingInteraction as formParameters.
WSRP v2.0 Specification
Statement text