Why cookies are not visible to javascript since 14.2 in HTML5 extensions?

Question

Using Photoshop 14.2
Before 14.2:
console.log(document.cookie); // this wasnt working
$.ajax('https://some/api/endpoint',{
        success: function(d,s,r) { console.log r.getResponseHeader('set-cookie') } // this was working - I could read cookie
        type: 'post',
        data: { email: '[email protected]', password: 'somepasswd' }
After 14.2:
Neither options work...
Just cant read cookie in javascript - but I am sure cookies work because on other api calls cookie is sent to server...
And I am sure that cookies options 'httpOnly' is set to false.
Even in chrome debugger under 'network' tab I cant see any cookies returned from server after api call.
Did Adobe change something with cookie management?
I need this to allow user to remember his account and auto login in extension. I know that cookies persist only during Host session but before 14.2 I could at least read cookie, save it to the file and after Host Application restart read the file and add cokkie to ajax call header... Now I cant do anything...

Answer 1

This is a known issue of CEP (Common Extensibility Platform, a DLL that supports displaying extensions). Code like “document.cookie” in HTML extension is invalid because CEF (CEP integrated CEF3 to display HTML Extensions) intentionally disables cookies on "file://..." for a variety of reasons.
However, CEP stores cookies at:
Windows: "C:\Users\yourusername\AppData\Local\Temp\cep_cookies"
Mac: "/Users/yourusername/Library/Logs/CSXS/cep_cookies"
Please let me know if more information is needed, thanks