TYPO3 Core

It's possible to have an error or message object as cObject. See example:

error = TEXT
error {
        value = The value does not appear to be a hostname
}

The following snippet is not working since the error object seems to be escaped automatically:

error = TEXT
error {
        value = <!-- -->
        wrap = <span class="fa fa-exclamation-triangle">|</span>
}

The same problem applies to the message object.