Invalid state parameter: when login with Google Oauth

[Boby900]

storedState and state is not coming up as a same value which is causing this error,
and storedState is also showing up as undefined when I am console logging it and also not able to see the cookie named google_code_verifier,

sometimes storedState is being undefined and if sometimes it's coming up then it's value is not being matched with the value of the state.

is it something to do if I have cleared the cookies manually, although I have refresh the page and then again tried logging in from the scratch but issue still persists

[pilcrowonpaper]

Did you get this fixed? I need to see your code to help here

[Boby900]

yeah, sure, I am not able to fix it yet, I started working on another parts of my side project and set it aside for a later.
google.ts,
cookies.ts

and my frontend if needed,
here

@pilcrowonpaper

[pilcrowonpaper]

I think the issue is that you're using Response.setHeader() to set multiple Set-Cookie headers. setHeader() overwrites existing header with the same name

https://nodejs.org/api/http.html#http_response_setheader_name_value

[Boby900]

I am trying to see what's causing this error but it's going above my head,
should I be using Response.writeHead() instead of Response.setHeader()
@pilcrowonpaper

[Boby900]

I am unable to understand the documentation you shared and what is actually causing this issue.

[Boby900]

[pilcrowonpaper]

If this header already exists in the to-be-sent headers, its value will be replaced

And

response.setHeader('Set-Cookie', ['type=ninja', 'language=javascript']); 

You'd want to pass an array with Set-Cookie instead to set multiple cookies.

[Boby900]

yes, now it makes sense to me, it's working fine, I have passed the Set-Cookie in an array and it worked,
thanks for your time and helping me :)