SendAsync() returns no data

I made a form in Blazor WebApplication (Client). When submited, all data gets posted to a Server, where it gets processed. The server then sends a response to the client whether the operation was successful or not, but the SendAsync() method does not return any response from the server.

string json = <Serialized Object>;

var request = new HttpRequestMessage(HttpMethod.Post, "https://<server_address>");
request.Content = new StringContent(json);
request.SetBrowserRequestMode(BrowserRequestMode.NoCors);

using (var client = new HttpClient())
{
    var response = await client.SendAsync(request).ConfigureAwait(false);
    bool isSuccessCode = response.IsSuccessStatusCode; // false

    string responseStr = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
    Console.WriteLine(responseStr); // prints empty string

    if (responseStr == "Success")
        return true;
    else
        return false;
}

The response variable does not contain any useful data, but only has default values in it (0s and nulls) 1 2

When I tried the same code(methods) with the same config (except CORS) in a console app, it worked without any problems and I got the desired response from the server.

// This worked
internal static async Task<string> Post(string url)
{
    var request = new HttpRequestMessage(HttpMethod.Post, url);
    request.Content = new StringContent(data);

    using var client = new HttpClient();

    var result = await client.SendAsync(request).ConfigureAwait(false);

    return await result.Content.ReadAsStringAsync().ConfigureAwait(false); // proper response was returned
}

Codedump to my code

Link to a GitHub project showing my issue: https://github.com/SjamesE/SendAsync-BugReport/

For anyone stumbling upon this post: You can NOT have no-cors reqests on the Blazor WebAssembly App. When using the following line, you can send a request, but the response will not be returned to your code.

request.SetBrowserRequestMode(BrowserRequestMode.NoCors);

If you still need to use the response from those requests, you need to switch to a Blazor Server App, or to create a host and route your requests through it.