HTTP ERROR 500 org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL contained a potentially malicious String "%25"

URI:/ansatte/Her%2520har%2520du%2520st%25EF%25BF%25BD%25EF%25BF%25BDrst%2520sjanse%2520for%2520%25EF%25BF%25BD%25EF%25BF%25BD%2520oppleve%2520solform%25EF%25BF%25BD%25EF%25BF%25BDrkelsen
STATUS:500
MESSAGE:org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL contained a potentially malicious String "%25"
SERVLET:dispatcherServlet
CAUSED BY:org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL contained a potentially malicious String "%25"