Bug ID 1132425: Change in behavior for the WS_REQUEST event when used in iRule ... Last Modified: Jun 28, 2025 ... Severity: 3-Major ... Symptoms ... WS_REQUEST event should only be triggered when the following headers are present in the HTTP request: ------- ... Upgrade: websocket Connection: Upgrade Sec-Websocket-Key ------- ... But in latest versions like 16.1.3 this event is triggered for every HTTP request. ... Impact ... Unnecessary events will be triggering and extra processing is required. ... Conditions ... -- Configure an iRule with WS_REQUEST event. -- Include the rule in the Virtual server. -- Use the software version 16.1.3