Regarding to zenparsing/zen-observable#87, please remove the polyfill of Symbol.observable in your code (https://github.com/apollographql/zen-observable-ts/blob/main/module.js#L24-L26) Your code causes httpClient issues in our environment using RxJS Observables after your polyfill is taken place. If your code was loaded first, then the observable check in https://github.com/ReactiveX/rxjs/blob/72bc92191ab959e27a969dc4476e14d95416573f/src/internal/observable/innerFrom.ts#L21 will fail. Please also update the library versions you are using (#316

Thank you very much :)

@benjamn When you get a chance, can you bump zen-observable here and in the @apollo/client to use the 0.9.0 release which features the new Observable.all() feature? Additionally, npmjs.org only shows 1.1.0 so there needs a deployment there as well.

It appears the TS types for this package specify that a start function can be given to the observer. It, however, doesn't seem to exist in the implementation of zen-observable.

This is a bit misleading as that function won't actually get called. Consider removing this property from the types.

Here is a reference to an issue where someone attempted to use this function and nothing happened: apollographql/apollo-client#10559 (comment)

Following the pattern of #310, this is a request to update the zen-observable dependency to v0.10.0. Version 0.10.0 of zen-observable fixes this issue. I don't use zen-observable directly, but I do use Apollo Client which indirectly depends on that package through this one. More information can be found in this issue: zenparsing/zen-observable#87