The Ktor JS engine is not passing cookies by defau...

# ktor

[theapache64]

The Ktor JS engine is not passing cookies by default 🤔
In the Fetch API (which Ktor uses under the hood), we can set credentials to include to make this work.
How can I make Ktor do this or pass this config?
Any help is appreciated 🙏

[hfhbd]

A (lazy) workaround: overwrite the fetch function in your main entrypoint:

window.originalFetch = window.fetch;
window.fetch = function (resource, init) {
    return window.originalFetch(resource, Object.assign({ credentials: 'include' }, init || {}));
};

https://youtrack.jetbrains.com/issue/KTOR-539

https://github.com/hfhbd/ComposeTodo/blob/66163246b1e8c3562d92be3f1ee01707e3d23551/web/src/jsMain/kotlin/app/softwork/composetodo/Main.kt#L12

[theapache64]

Wow, that did the trick! Thanks for the links. I’m surprised how a standard construct is missing from Ktor and is still in progress even after four years of that issue… 🤔

[e5l]

Could you try setting credentials include into nodeOptions ? it also should work

[e5l]

https://github.com/ktorio/ktor/pull/4793

[theapache64]

@e5l I think I tried doing that yesterday, but It didn’t work. I digged little deep into the mapping code and I found for browser there’s a different logic where these options are not mapped to … only basic props are added in here.

[e5l]

yep, I discovered this as well and added more generic option for the next minor release

[e5l]

please check the PR, the fix will be available in 3.2.0-eap-* build after merging

[theapache64]

that’s great! will test and update once merged - thanks 🙂