[ https://issues.jboss.org/browse/WFCORE-4043?page=com.atlassian.jira.plugi... ] Saisha Naik updated WFCORE-4043: -------------------------------- Description: Issues accessing a JNLP application in Internet Explorer due to missing JNLP extension in undertow. The JNLP application is rendered as an XML file due to incorrect mime-type. This works fine in Mozilla and Chrome. The JNLP mapping does not exist in [Mimemappings.java|https://github.com/undertow-io/undertow/blob/master/cor...]. was: Issues accessing a JNLP application in Internet Explorer due to missing JNLP extension in undertow. The JNLP application is rendered as an XML file due to incorrect mime-type. The JNLP mapping does not exist in [Mimemappings.java|https://github.com/undertow-io/undertow/blob/master/cor...]. The work around is to add the mime-type to the servlet container[2] : {code} /subsystem=undertow/servlet-container=default/mime-mapping=json:add(value="application/json") {code} Steps to Reproduce: 1) Deploy the Test.jnlp(attached) in welcome-root folder. 2) Deploy TestJnlp.jar(attached) in deployments/ directory. 2) Access the URL : https://IP:PORT/Test.jnlp 3) It will prompt to download the Test.jnlp file. Accept and double click on it. 4) Click on the "Run" button to lauch the AWT program. The above steps will work fine in browsers like Mozilla and Chrome, but fail in IE. Attachment: Test.jnlp TestJnlp.jar Workaround Description: The work around is to add the mime-type explicitly to the servlet container : {code} /subsystem=undertow/servlet-container=default/mime-mapping=json:add(value="application/json") {code} Workaround: Workaround Exists Affects: Migration,Compatibility/Configuration,User Experience -- This message was sent by Atlassian JIRA (v7.5.0#75005)