WebGL avatar creator iFrame doesn't prompts user to login on chrome

[Dioinecail]

It seems that due to google's policy on third-party cookies, RPM's iFrame can no longer save user's cookies and thus cannot cache previously created avatars in Chrome browser.
What's interesting is that user is not even prompted to login.

There is a constant error message when recieving messages from RPM's backend:
user is not identified, can't set cookies
Also if you go to chrome's cookies tab in the inspector, it shows that some cookies were blocked

Steps to reproduce

1. Create empty unity project
2. Import RPM core package via git url
3. Import WebGL sample
4. Build for WebGL and launch via localhost (i used nginx)
5. Click Create Avatar and then next
6. Click Create Avatar again, you are expected to be presented with an avatar selector screen, but instead you are shown a new avatar creator window, as if you are creating an avatar for the first time

Specific info

• Ready Player Me Core version: 7.2.0
• glTFast version: 6.0.1
• Unity Editor: 2022.3.22f1
• Render Pipeline: Built-in
• Operating System: Windows
• Platform: WebGL build, Chrome 129.0.6668.89