3D Sketchfab Viewer API example Support HUAWEI v1 by com unique action on Sketchfab NOTE: Firefox does not support certain tasks for iframes with style="display:none", like adding event listeners. A possible workaround is to add a class that changes the visibility. Here is an example: Sketchfab Viewer API example Click me to load model and show iframe. Sketchfab Viewer API example Hell Wolf by Fubbi on Sketchfab