Docs UI is broken with Fable.Remoting.Giraffe v5.24.0

[Zaid-Ajaj]

Using the Docs UI in Fable.Remoting.Giraffe v5.24.0, the embedded docs application doesn't work.

Repro:

open Fable.Remoting.Giraffe
open Fable.Remoting.Server
open Saturn

type ToolApi = {
    hello: unit -> Async<string>
}

let toolApi: ToolApi = {
    hello = fun () -> async { return "Hello from the tool API" }
}

let docs = Remoting.documentation "Tool API" [ ]

let toolApiHandler = 
    Remoting.createApi()
    |> Remoting.fromValue toolApi
    |> Remoting.withDocs "/api/docs" docs
    |> Remoting.buildHttpHandler

let app = application {
    use_router toolApiHandler
}

run app

The initial loading of schema and UI rendering works but calling the functions fails

[PierreYvesR]

I'm experiencing similar issues. I've narrowed it down to:

GET http://localhost:5000/ToolApi/hello

fails, while

GET http://localhost:5000/ToolApi/hello
Content-Type: application/json

succeeds.

The behaviour changed between Fable.Remoting.Giraffe v5.21 and v5.23.