Sporadic errors with client side storage upload

[jakecollins1]

Bug report

• I confirm this is a bug with Supabase, not with my own application.
• I confirm I have searched the Docs, GitHub Discussions, and Discord.

Describe the bug

Our product uses client side supabase storage to upload images to a supabase bucket. This largely is working, but lately we have been seeing sporadic instances of a couple different error messages:
StorageUnknownError: Failed to fetch (xxx.supabase.co)
StorageApiError: new row violates row-level security policy

To Reproduce

Hard to reproduce, happening at a low rate for users

Expected behavior

Consistent success with client side upload operations

Screenshots

If applicable, add screenshots to help explain your problem.

System information

"@sveltejs/kit": "^2.0.0",
"svelte": "^4.2.19",
node 20
"@supabase/ssr": "^0.6.1",
"@supabase/supabase-js": "^2.55.0"

In one error case, the user was using ios, mobile safari 18.5
They have also been seen on chrome mobile and chrome