ETag caching does not work with WebLogic

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 5.1 EE SP3 (5.1.6), 5.2 EE SP1 (5.2.5)
• Fix Version/s: 5.1 EE SP4 (5.1.7), 5.2 EE SP2 (5.2.6)
• Component/s: Performance
• Labels:
  • 5.2_release_notes
• Environment: WebLogic

ETag caching does not work with WebLogic.

The ETag filter creates a hash of the page and if the hash is the same as the one available in the browser cache, then there's no need to retransmit that same page. For the ETag filter to work, WebLogic requires the content length to be set to 0. (other app servers does not have this restriction).