URL Double Encoding When Using Filters

Issue

When using a scroll bar in Tableau Server on a filter that has 5000 or more items, you may notice that your Web Application Firewall (WAF) may see double-encoding as a security risk and block the double-encoded HTTP traffic between the client and Tableau Server.

Environment

Tableau Server

Resolution

As a Tableau Server Administrator, upgrade to Tableau Server 2018.1.1, 10.5.4, 10.4.7, 10.3.11 or a later version. For more information, see Upgrading Tableau Server in Tableau Help.

Cause

This behavior is related to issue (ID: 742880) which has been fixed in a recent release of Tableau Server.

Additional Information

Scrolling on filters in Tableau Server with 4999 items or less does not produce double encoded HTTP traffic.

For more information about Double Encoding, see the following third party documentation: