Mirror Page not working in proofs

[Santiago-Vives]

Hi all,

We've realised that the mirror page in our proofs/test emails sometimes doesn't work or it does but for a very short period (maybe 5-10 mins). Whenever the mirror page stops working the following error message appears:

A technical error has occured:
Bad mirror page; rc=404
com.neolane.fwk.core.NlException: Bad mirror page; rc=404
	at org.apache.jsp.m_jsp._jspService(m_jsp.java:142)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:472)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at com.neolane.jssp.HttpHeaderFilter.doFilter(HttpHeaderFilter.java:102)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1137)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:319)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)

Any ideas on what is going on here?

Thanks a lot in advace for your time!

[Craig_Thonis · Accepted solution]

Hi Santiago,

There are numerous causes for this type of error. The most common occurs when a user attempts to view a mirror page that has expired. That said, in some older versions of Campaign (before 9122) there was a bug that caused the same problem, and this error can occur if there are bad header information or configuration issues.

I would recommend reaching out to Campaign Support, as this will likely take a bit of digging to isolate the exact root cause of the problem.

Regards,

Craig

[Santiago-Vives]

Hey Craig,

Thanks a lot for your answer, I'll get in touch with Campaign Support and come back to you with any updates so this thread can be useful for future queries. 

Regards,

Santiago