Sync with external calendar via URL fails

[0utl4w]

I try to add a public calendar via an URL with the calendar app. Error message asks if I'm sure the calendar is public. It is. When I download the ics-file and import it into a calendar it works, but that's not the solution since the calendar behind the URL is updated regularly. E.g. URL: http://i.cal.to/ical/4437/fiba/team-deutschland-basketball/424997c0.f42b7eb1-1af6cb2e.ics

Expected behavior
A new calendar is created and the events are imported and updated regularly.

• Device: Pixel 6a
• OS: GrapheneOS
• Version: 14

Tasks

• Adjust android manifest (if possible)
• Adjust validation to https only

[andrehgdias]

Hi, thanks for the report.
It's probably something with GrapheneOS, but we will investigate further.
Does it happen to any URSs or just from the provider you mentioned?

[0utl4w]

Hi, it happens with any URL I am trying. But with the app ISCx5 it is no problem to sync these adresses. Am 9. Oktober 2024 08:14:52 UTC schrieb "André Dias" ***@***.***>:

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Hi, thanks for the report. It's probably something with GrapheneOS, but we will investigate further. Does it happen to any URSs or just from the provider you mentioned? -- Reply to this email directly or view it on GitHub: #7695 (comment) You are receiving this because you authored the thread. Message ID: ***@***.***>

[andrehgdias]

Hi, it happens with any URL I am trying. But with the app ISCx5 it is no problem to sync these adresses. Am 9. Oktober 2024 08:14:52 UTC schrieb "André Dias" @.>:
…
Hi, thanks for the report. It's probably something with GrapheneOS, but we will investigate further. Does it happen to any URSs or just from the provider you mentioned? -- Reply to this email directly or view it on GitHub: #7695 (comment) You are receiving this because you authored the thread. Message ID: @.>

Hi, please try with https.

[0utl4w]

Hi, it happens with any URL I am trying. But with the app ISCx5 it is no problem to sync these adresses. Am 9. Oktober 2024 08:14:52 UTC schrieb "André Dias" @.>:
…
Hi, thanks for the report. It's probably something with GrapheneOS, but we will investigate further. Does it happen to any URSs or just from the provider you mentioned? -- Reply to this email directly or view it on GitHub: #7695 (comment) You are receiving this because you authored the thread. Message ID: @.>

Hi, please try with https.

Great, that solved it! Thank you!