XF.showOverlay() not working from template

[Siropu]

Code:

<xf:js>
    XF.showOverlay(XF.getOverlayHtml({title: 'my title', html: '<div>my html</div>'}));
</xf:js>

Also as a side note, it would be great if you could pass multiple classes to the className of the options object.
XF.showOverlay() not working from template

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