Private subscriptions could be unexpectdly indexed by search engines and public access

[di9eiko0dcikv]

Describe the bug

Even set "private subscription" for subscriptions, they still can be public access through the url path: https://app.follow.is/share/feeds/:id,,also could be indexed by search engines, this is not the expected behavior in most cases.this compromises users privacy.

Feed Info

any subscription with set "private subscription".

Reproduction Video

1. Add a subscription
2. set the subscription as private subscription
3. access the share page of the subscription from url path: https://app.follow.is/share/feeds/:id

Environment

The online web version

Validations

• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• This issue is valid

Contributions

• I am willing to submit a PR to fix this issue
• I am willing to submit a PR with failing tests (actually just go ahead and do it, thanks!)

[linear]

FOL-1450 Private subscriptions could be unexpectdly indexed by search engines and public access