WFCORE-1672: Add 'Vary: Origin' header for CORS responses

[hpehl]

https://issues.jboss.org/browse/WFCORE-1672

[wildfly-ci]

Core - Full Integration Build 3137 outcome was FAILURE using a merge of 1e6bf4a
Summary: Tests failed: 1 (1 new), passed: 3397, ignored: 193 Build time: 00:59:48

Failed tests

org.jboss.as.test.xts.annotation.compensationScoped.CompensationScopedTestCase.shouldSeeDifferentValuesInDifferentTransactions: com.arjuna.mw.wsas.exceptions.WrongStateException: ARJUNA041018: Cannot enlist child activity with parent as parent's status is: Status.Completed
    at com.arjuna.mwlabs.wsas.activity.ActivityImple.addChild(ActivityImple.java:583)
    at com.arjuna.mwlabs.wsas.activity.ActivityImple.start(ActivityImple.java:160)
    at com.arjuna.mwlabs.wsas.UserActivityImple.start(UserActivityImple.java:136)
    at com.arjuna.mwlabs.wsas.UserActivityImple.start(UserActivityImple.java:99)
    at com.arjuna.mwlabs.wscf.model.sagas.arjunacore.CoordinatorServiceImple.begin(CoordinatorServiceImple.java:108)
    at org.jboss.narayana.compensations.impl.local.LocalBAController.beginBusinessActivity(LocalBAController.java:28)
    at org.jboss.as.test.xts.annotation.compensationScoped.CompensationScopedTestCase.shouldSeeDifferentValuesInDifferentTransactions(CompensationScopedTestCase.java:76)
------- Stdout: -------
 [0m01:06:42,165 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 92) WFLYUT0022: Unregistered web context: /transactional-test
 [0m [0m01:06:42,181 INFO  [org.jboss.as.webservices] (MSC service thread 1-7) WFLYWS0004: Stopping service jboss.ws.endpoint."transactional-test.war".TransactionalServiceImpl
 [0m [0m01:06:42,193 INFO  [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 85) WFLYCLINF0003: Stopped client-mappings cache from ejb container
 [0m [0m01:06:42,212 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-2) WFLYSRV0028: Stopped deployment transactional-test.war (runtime-name: transactional-test.war) in 49ms
 [0m [33m01:06:42,223 WARN  [org.jboss.as.controller] (management-handler-thread - 2) WFLYCTL0357: Notification of type deployment-undeployed is not described for the resource at the address []
 [0m [0m01:06:42,225 INFO  [org.jboss.as.repository] (management-handler-thread - 2) WFLYDR0002: Content removed from location /opt/buildAgent/work/29472398f1ae6497/full/testsuite/integration/xts/target/jbossas/standalone/data/content/36/e783687232ae2cb74541bbb40ebca97e7deb6f/content
 [0m [0m01:06:42,225 INFO  [org.jboss.as.server] (management-handler-thread - 2) WFLYSRV0009: Undeployed "transactional-test.war" (runtime-name: "transactional-test.war")
 [0m [0m01:06:42,985 INFO  [org.jboss.as.repository] (management-handler-thread - 3) WFLYDR0001: Content added at location /opt/buildAgent/work/29472398f1ae6497/full/testsuite/integration/xts/target/jbossas/standalone/data/content/90/9ee7f14591663c3b74914016e877acd204f921/content
 [0m [0m01:06:42,997 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-4) WFLYSRV0027: Starting deployment of "test.war" (runtime-name: "test.war")
 [0m [0m01:06:43,199 INFO  [org.jboss.weld.deployer] (MSC service thread 1-8) WFLYWELD0003: Processing weld deployment test.war
 [0m [0m01:06:43,409 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 85) WFLYUT0021: Registered web context: /test
 [0m [0m01:06:43,415 INFO  [org.jboss.as.server] (management-handler-thread - 3) WFLYSRV0010: Deployed "test.war" (runtime-name : "test.war")
 [0m

[hpehl]

Retest please