java.lang.IllegalArgumentException: Control character in cookie value or attribute.

cas登录的时候老是报如下错误：

严重: Error processing request
java.lang.IllegalArgumentException: Control character in cookie value or attribute.
	at org.apache.tomcat.util.http.CookieSupport.isV0Separator(CookieSupport.java:153)
	at org.apache.tomcat.util.http.Cookies.processCookieHeader(Cookies.java:340)
	at org.apache.tomcat.util.http.Cookies.processCookies(Cookies.java:168)
	at org.apache.tomcat.util.http.Cookies.getCookieCount(Cookies.java:106)
	at org.apache.catalina.connector.CoyoteAdapter.parseSessionCookiesId(CoyoteAdapter.java:932)
	at org.apache.catalina.connector.CoyoteAdapter.postParseRequest(CoyoteAdapter.java:689)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

十一月 05, 2019 10:46:02 上午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring FrameworkServlet 'springmvc'

系统可正常运行，但老是报这个错