The filter tips aren't ported to D8 yet.
We're a bit ahead of core here, because these tips don't have the bug described in #2346209: /filter/tips improperly escaped.
I'm not sure if that means I'm doing it wrong, but apparently returning the tips as a render array (with #markup elements for the HTML we generate) works perfectly.
Issue #2473225 by cburschka: Port filter tips
Automatically closed - issue fixed for 2 weeks with no activity.
Comments
Comment #1
cburschkaComment #2
cburschkaWe're a bit ahead of core here, because these tips don't have the bug described in #2346209: /filter/tips improperly escaped.
I'm not sure if that means I'm doing it wrong, but apparently returning the tips as a render array (with #markup elements for the HTML we generate) works perfectly.
Comment #4
cburschka