MacOS – Safari not opening local html files after upgrading to macOS Catalina Beta

betacatalinamacossafari

I recently upgraded to macOS Catalina (10.15 Beta (19A546d)) on my Mid 2014 MacBook Pro. Then I can not open local html files on Safari (13.0 (15608.2.5)) and got the following error message. However, I can open websites on Safari and local html files on Chrome and Firefox. I don't have any third-party security software.

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Best Answer

It turns out that Safari did not have permission to read my html files. Go to

System Preference > Security & Privacy > Privacy > Full Disk Access

and add safari. (Answer taken from comment.)

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