AT
Disable SameSite property for WAS 9

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• Add the following lines:

      <!-- SameSite cookie property is not supported for IBM WebSphere 8/9 -->
      <init-param>
        <param-name>enableSameSiteCookie</param-name>
        <param-value>false</param-value>
      </init-param>
  

  to the web.xml of WAS 9 https://github.com/camunda/camunda-bpm-platform-ee/blob/master/webapps/camunda-webapp/was9/src/main/webapp/WEB-INF/web.xml#L74-L86