Ignore Rule
Identified by type="Ignore"
, this rule signals to a containing Conditions
 rule (see above) that a condition has been understood and should not affect the processing of an assertion. Many condition types do not affect validity per se, but all SAML conditions require explicit acknowledgement and acceptance of their semantics.
The content of this element is an XML QName identifying the XML element or schema type of a SAML condition to ignore and treat as successfully processed.
Example
<PolicyRule type="Ignore" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">saml2:ProxyRestriction</PolicyRule>