Cookies/localStorage is not shared across WKWebView:s

[react-native-webview]

Cookies/localStorage is not shared across WKWebView:s

[finalquest]

Me again.
We have been strugling with cookies errors on wkwebview from the start.
The way wkwebview handles cookies on iOS is pretty rare.
In the old UIWebview, the cookies are shared between all the network requests of the application.
So, for example, I logged to a server using fetch on RN, the webview can keep a session without login, because the cookie session is already setted by the first fetch.

WKWebview dosnt work like this. I've made several attempst to fix that on the react-native-wkwebview repo, but I failed every time.

So, if anyone has any insight on this, I will gladly accept it

Regards

[felixmeziere]

@epiceros @Titozzz found an improvable fix for this for now:

• Add master branch of react-native-cookies to your package.json: "react-native-cookies: "git+https://github.com/joeferraro/react-native-cookies"
• Install/link the library properly.
• Get the cookies of the website you need and then set them with the hidden option useWebKit set to true.

const cookies = await CookieManager.get('http://example.com')
CookieManager.set({
  name: 'myCookie',
  value: cookies.myCookie.value,
  domain: cookies.myCookie.domain,
  origin: cookies.myCookie.domain,
  path: cookies.myCookie.domain.path,
  version: '1',
  expiration: cookies.myCookie.expiresDate
}, true) // <= true here!!!

You might just need the set part.
Not sure of what's really needed and not in this, I don't have time to investigate more on it. If you find a quicker way of doing it please tell us here :-)

[KoenLav]

This should already be fixed here:

CRAlpha/react-native-wkwebview@3e01629

Please consider replacing WKWebView with this better maintained version, per my suggestion here: #105

[felixmeziere]

This is blocking us too :/

[Titozzz]

Can you give more details about your environment? Does this only apply to wkwebview? Is it fine on Android and UIWebview ? Do you have multiples Webview a t the same time or only one that you close then reopen ?

[epiceros]

Hi! Some more info. We have an app with one main webview where, the user logs in. Then at times we overlay that webview with another webview, where the user needs to be logged in (so they are both open at the same time, and they are on the same domain). The webview displays fine, but the user is not logged in, in the overlaying webview. This is only the case for WKWebView, in UIWebView, and on Android, it just works.

[Titozzz]

Ok, thanks for the details. If you want to start working on it I can review / merge pull requests 🚀

[Titozzz]

Good insight, thanks

[kylemantesso]

I've raised a PR to fix this issue

[github-actions]

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