The upgrade to undertow-core 1.3.11 causes HTTP keep-alive requests to hang. ---------------------------------------------------------------------------- Key: WFLY-6020 URL: https://issues.jboss.org/browse/WFLY-6020 Project: WildFly Issue Type: Bug Components: Web (Undertow) Affects Versions: 10.0.0.CR5 Reporter: Wouter van der Aa Assignee: Stuart Douglas Fix For: 10.0.0.Final I just created a Jira ticket on the undertow-core bugtracker, which I do think would be a big problem (at least for us), if it is not solved on the Final version of Wildfly. This ticket is about the hanging of Keep-Alive requests with the undertow-core version used in the CR5 release of Wildfly. See https://issues.jboss.org/browse/UNDERTOW-609 for more details.