Passkey on Safari results in error "PublicKeyCredential" after upgrade to Mac OS 15.4

Hello,

I’ve run into an issue with using passkeys stored in 1Password when signing in to Oracle Single Sign-On from Safari on macOS.

macOS version: Sequoia 15.6.1
Safari version: 18.6
1Password app version: 8.11.6
1Password Safari extension: enabled
Steps to reproduce:

Generate and store a passkey for Oracle SSO using Firefox on macOS (works fine).
Open the Oracle SSO login page in Safari.
1Password correctly offers the saved passkey.
After selecting the passkey, the login flow fails with the following error in the console:
TypeError: Can only call PublicKeyCredential.toJSON on instances of PublicKeyCredential

Expected behavior:
The saved passkey should authenticate successfully in Safari, just as it does in Firefox.

Actual behavior:
Safari shows the error above and login fails.

Notes:

The same passkey works correctly in Firefox (both creation and login).
In Safari, it looks like the Oracle page expects a native PublicKeyCredential object, but 1Password’s bridge is returning something different.
This makes Oracle SSO unusable with passkeys via Safari + 1Password.
Could you please confirm if this is a known compatibility issue with Safari and if there’s a workaround?

Thanks!

Hello,

As a paying customer, I would expect a more professional response and timely resolution. The issue first appeared in early November 2024. I am certain this is on your side, as it was identified internally at the time.

I understand how support and development processes work, but it should not take a full year to resolve a problem of this nature. For your customers, being unable to access Oracle sites (and potentially others) is highly discouraging.
You may consider it “just one site,” but for me it represents 70% of my daily logins. Open-source alternatives have already resolved this issue.
This is not personal to anyone on your team, but I ask sincerely: would you accept this level of support if you were in my position?

With all honesty,
Andreas

I am also running into exactly same issue, can't login to OracleCloud because of this error.

Did this get fixed? I signed in this morning and it actually worked.

For anyone following this topic I learned today that this issue with Oracle passkeys has been fixed in Safari and Brave. (My guess is it also fixes other Chromium browsers.) My best guess is this issue was fixed about two months ago, but never mentioned here. (I never saw it mentioned in release notes, but I could have just missed it.)

@slessard, @hcubed, @branok75, @khaosspawn 

I've checked the internal work item open to fix this and our development team's work is still ongoing. The issue is still open with our development team and other customers have reported that they still experience issues with passkeys on Oracle's website.

I've left a note with our development team to let them know that passkeys are working for you on Oracle's website and I'll reach out if there's any information that our development team asks for from your end. If the issue returns for you then let me know. 

-Dave

edit: Edited for clarity.

Issue=FILL-493
Issue=FS-233

For anyone experiencing this issue, there is a workaround. I decided to automate it in Google Chrome until 1Password fixes the problem.

You can create a new bookmark (for example, in your bookmarks toolbar) with the following details:

Name: 1Pass workaround
URL: javascript:(() => { delete PublicKeyCredential.prototype.toJSON; })();

How it works:

Log in to cloud.oracle.com, enter your username, and on the next screen—before clicking your passkey—click the bookmark above. The login should then proceed correctly.