IE9 sometimes using HTTP status code 1223 instead of 204

Solution Unverified - Updated -

Issue

  • IE9 sometimes using HTTP status code 1223 instead of 204.
  • The login-status-iframe.html only triggers a successful init if the request from the Keycloak server is a 204. However, in Internet Explorer 9 there is an issue where 204s can be mangled in to a 1223 respond by the browser itself.

Environment

  • Red Hat Single Sign-On(RHSSO)
    • 7.1

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