I noticed that on my dataTables the Excel buttons stopped appearing, so I started doing some testing and I realized that the issue only occurs in Safari.
Does it support latest version Safari version- 13.1.3 (15609.4.1)?
Does this example work with your browser?
If the example does work then the problem is specific to your page. Please post a link to your page or a test case replicating the issue so we can help debug.
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