asp.net-core - 将 Letsencrypt SSL 添加到 nginx 后 SignalR 失败

Question

我为 SignalR 创建了一个小型演示项目。当我在没有 SSL 的情况下在 Nginx 后面发布我的项目时，这一切都奏效了。但是在我运行 Certbot 并将 SSL 添加到站点后，所有 SignalR 集线器/WebSockets 都停止工作。该网站可以在这里找到:
https://app.topswagcode.com

signalr.js:5053 WebSocket connection to 'wss://app.topswagcode.com/chatHub?id=v_UmTZyB9v962n44Wf2-Kg' failed: 
(anonymous) @ signalr.js:5053
(anonymous) @ signalr.js:5034
step @ signalr.js:4995
(anonymous) @ signalr.js:4976
(anonymous) @ signalr.js:4970
__awaiter @ signalr.js:4966
WebSocketTransport.connect @ signalr.js:5016
HttpConnection.startTransport @ signalr.js:4149
(anonymous) @ signalr.js:4099
step @ signalr.js:3710
(anonymous) @ signalr.js:3691
(anonymous) @ signalr.js:3685
__awaiter @ signalr.js:3681
HttpConnection.createTransport @ signalr.js:4052
(anonymous) @ signalr.js:3970
step @ signalr.js:3710
(anonymous) @ signalr.js:3691
fulfilled @ signalr.js:3682
signalr.js:2150 [2021-06-11T06:43:20.004Z] Error: Failed to start the transport 'WebSockets': Error: There was an error with the transport.

我的 API 端点仍然有效，而且 SSL 似乎在一般情况下有效。
为了部署我的应用程序，我遵循: https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/linux-nginx?view=aspnetcore-5.0
对于正常的 HTTP 连接运行顺利。 Certbot 添加了它的 SSL 内容并破坏了我的 WebSockets :(

编辑
所以我试图恢复所有更改并重新开始。我没有将所有流量重定向到 SSL(我应该这样做)，而是同时拥有 HTTP 和 HTTPS
http://app.topswagcode.com/Stock
https://app.topswagcode.com/Stock
我的 Http 套接字仍然有效，但 HTTPS 无效。
我的 Nginx 设置:

server { 
    server_name app.topswagcode.com; 
    location / { 
        proxy_pass http://127.0.0.1:5000; 
        proxy_http_version 1.1; 
        proxy_set_header Upgrade $http_upgrade;

        proxy_set_header Connection keep-alive;
        proxy_set_header Host $host; 
        proxy_cache_bypass $http_upgrade; 
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /chathub { 
        proxy_pass http://127.0.0.1:5000/chathub; 
        proxy_http_version 1.1; 
        proxy_set_header Host $host; 
        proxy_set_header X-Real-IP $remote_addr;

        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
        proxy_set_header X-Forwarded-Host $server_name; 
        proxy_set_header Upgrade $http_upgrade;

        proxy_set_header Connection "upgrade"; 
        proxy_cache_bypass $http_upgrade;
}


    listen 80; # managed by Certbot

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/app.topswagcode.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/app.topswagcode.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}

我尝试添加在一些帖子中找到的聊天中心部分。但是没有为 SSL 做任何事情。
API 端点仍然适用于 HTTP 和 HTTPS。仍然对我做错了什么感到失落。很可能在 Nginx 配置中很简单。
为此，我也将在下面分享我的 Startup.cs。 id 没什么特别的。我已经禁用了 app.UseHttpsRedirection();和 app.UseHsts();

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddRazorPages();
        services.AddControllers();
        services.AddSignalR();

        services.AddTransient<IStockService, FakeStockService>();
        services.AddHostedService<TimedHostedService>();
        services.AddHostedService<StockHostedService>();
    }


    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            app.UseExceptionHandler("/Error");
            // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
            //app.UseHsts();
        }

        //app.UseHttpsRedirection();
        app.UseStaticFiles();

        app.UseRouting();

        app.UseForwardedHeaders(new ForwardedHeadersOptions
        {
            ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
        });


        app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapRazorPages();
            endpoints.MapControllers();
            endpoints.MapHub<ChatHub>("/chathub");
            endpoints.MapHub<ProcessHub>("/processhub");
            endpoints.MapHub<GraphHub>("/graphhub");
            endpoints.MapHub<StockHub>("/stockhub");
        });
    }

编辑 2
所以我刚刚发现了这个:


此请求仅对 Https 失败。请求正文是:

{"protocol":"json","version":1}

但是对于 HTTPS，它只是返回:未找到“没有与该 ID 的连接”

Answer 1

在 Startup.js/ConfigureServices 中:

services.AddSignalR(options => {
    ​options.KeepAliveInterval = TimeSpan.FromSeconds(15);
    ​options.EnableDetailedErrors = true;
​});

在 Startup.js/配置中:

app.UseWebSockets();
app.UseStaticFiles();