How-to Add Attribution to a layer

To add attribution info to the map for a given layer, use the <attribution> tag in the <map-source>’s <layer>.

Example Below:

<map-source name="openstreetmap" type="xyz">
    <layer name="osm_mapnik">
        <attribution><![CDATA[
            &copy; <a href="http://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> Contributors.
        ]]></attribution>
    </layer>
    <url>https://a.tile.openstreetmap.org/{z}/{x}/{y}.png</url>
    <url>https://b.tile.openstreetmap.org/{z}/{x}/{y}.png</url>
    <url>https://c.tile.openstreetmap.org/{z}/{x}/{y}.png</url>

    <param name="cross-origin" value="anonymous"/>
</map-source>