Hi @Roadstone
It looks like you have the same issue as the doc describe. But the solution adding URL to trusted sites isn't applicable in your situation as MacOS doesn't have security zones settings.
Then I think only the following change can fix the issue:
This issue occurs when the Dialog API is used in pop-up mode. To prevent this issue from occurring, use the displayInFrame flag. This requires that your page support display within an iframe.
It looks like related to the development of office plugin which I'm not familiar with. I think that needs to change the code of the plugin. I suggest that you provide feedback to the plugin owner to see if they can make the plugin compatible with MacOS.
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Regards,
Yu Zhou