    private static String sanitize(String mimeType) {
        for (String accepted : new String[]{
            "application/json",
            "text/plain"
        }) {
            if (accepted.equalsIgnoreCase(mimeType)) {
                return accepted;
            }
        }
        return "text/plain";
    }
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.