1). Locate the server.xml file, [server install dir]\tomcat\conf\server.xml .
2). Locate maxHttpHeaderSize size setting for Spotfire app:
< Service name="Spotfire">
<Connector port="80"
maxHttpHeaderSize="16384"
…
3). Change this setting to 65536:
maxHttpHeaderSize="65536"
4). Save the file.
5). Restart the TIBCO Spotfire Server Windows Service (Start -> Administrative tools -> Services…).
NOTE:
On the Spotfire server, changing the maxHttpHeaderSize setting has proven effective.