This commit adds support for the Fetch API's keepalive option when using HttpClient with the withFetch provider.
The change includes:
- Added keepalive to HttpRequestInit interface
- Modified FetchBackend to pass the option
- Added some unit test
PR Close#60621
Expose `HTTP_TRANSFER_CACHE_ORIGIN_MAP` injection token in public api. This is useful when different origins are used to access the same APIs between server and browser.
Fixes#53702
PR Close#55274
`provideClientHydration()` accepts new `HydrationFeature` : `HttpTransferCacheOptions`.
`withHttpTransferCacheOptions` accepts an option object:
* `includeHeaders` : list of headers entries to keep in the cache with the request
* `filter` a callback to determine if a request should be cached
* `includePostRequests`: to include POST requests in the allowed methods
Implements some of the features requested in #50117
PR Close#52029
This commit adds a logic to produce a warning in case HttpClient doesn't use fetch during SSR.
It's recommended to use `fetch` for performance and compatibility reasons.
PR Close#52037
