SigmaJS: Get node labels to wrap

Question

I'd like to know how to get node labels in SigmaJS to wrap. Adding \n to the labels doesn't work. For example, in the image below, I'd like the text to wrap to a new line after "double-strand"

Here's an example of adding nodes to a SigmaJS graph (version 1.2), where NODES is an array of node attributes:

let graph = {nodes: []};

NODES.forEach(function (node) {
    graph.nodes.push({ 
        id:  node.id,
        label: node.label,
        x: node.x * nodeXAdj,
        y: -node.y * nodeYAdj,
        size: node.size,
        type: node.type,
        color: node.color,
        borderColor: node.borderColor,
    });
});

let s = new sigma({graph: graph});