a0d929ca_WSRP_v2_0_Specification__Statement_text
[#] CS132 [Section] 9.2.1 [Statement text] 
The Consumer is NOT REQUIRED to process URLs not conforming to this format and MAY choose to pass them unchanged, replace them with error text, do a best effort processing or invalidate the entire markup fragment.
WSRP v2.0 Specification
Statement text