Focus mode does not work in Safari on iOS 13 or macOS Catalina

Describe the bug

Work failed.Sometimes it shows a Loading Page.Sometimes it shows an error page:”This service can’t work now.We are processing.”(Chinese to English translation)

Did this error occur while using dotnet try or online?

• dotnet-try
• online

What kind of error was it?

• User Interface (UI):
• Service Error: Can’t try C# online.I tried in China.
• Other:

Please complete the following:

• OS
  • Windows 10
  • macOS
  • Linux (Please specify distro)
  • iOS
  • Android
• Browser
  • Chrome
  • Edge
  • Safari

Maybe it is only in China.

[LadyNaggaga]

Could you please provide a screenshot ? Or provides the steps you went through so, we can replicate it ?

[hR7N-tNY]

I believe sisungo is referring to "Focus Mode" being unavailable. I am experiencing the same issue and have attached a screenshot of the same. This occurs when I click "Enter Focus Mode" at the top right hand side of the screen. I am using Safari for my browser and am in the US. Although the error says that Focus Mode is "temporarily unavailable" this has been going on for at least a week.

[LadyNaggaga]

Yes, this is know issue due privacy features in Safari. You can read this #13 for more details and a workaround.

If you happen to have Chrome or firefox on your machine it will work just fine.

[jonsequitur]

The root cause is different from #13, which was fixed last year. I confirmed Focus Mode is working in Safari on macOS Mojave and confirmed it's not working on iOS 13. I wonder if iOS 13 introduced the issue.

@sisungo and @hR7N-tNY, which version of iOS are you seeing this issue in?

Also, @LadyNaggaga I think you said you upgraded to macOS Catalina? Can you repro the issue there?

[hR7N-tNY]

@jonsequitur, I am not using iOS. I'm using macOS Catalina. I can confirm, per @LadyNaggaga's recommendation, that "Focus Mode" does work in Chrome, just not in Safari.

[LadyNaggaga]

I was able to reproduce the issue above on Catalina in Safari. Works fine in other browsers
On docs you see this

On try.dot.net - When you hit run there is no output