This happens only on Internet Explorer browser.
Steps to reproduce:
Click on cache container -> configuration -> Deployments -> upload jar file -> deploy file -> remove file

Result:
There is no error message. The file is not removed though, which is the correct behavior.

Expected behavior (behavior on Firefox):

• error pop up saying:
  WFLYDC0043: Cannot remove deployment local-task.jar from the domain as it is still used by server groups [main-server-group]

• File should not be removed.

Note: the jar file in attachment can be used to be deployed to server and reproduce the issue.