How to add Spinner/Loading image to BUI Extension

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Hi All,

We are trying to add spinning or loading image to our BUI extensions to make the user experience better. We tried with standard javascript methods (e.g: 'parent.document.getElementById("mainLoading").style.display="flex"), but this doesn't work. We also tried to add Loader using HTML styling (setting key frames), but that didn't work either. We have couple of extensions which open modal window, showing spinner on top of this modal window is also something we are trying to achieve.

Thanks,

HK

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