Update 3.0.0-preview-known-issues.md

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Brennan 2019-09-03 13:12:52 -07:00 committed by GitHub
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@ -39,15 +39,17 @@ To update the path for every new terminal session, the `export` entry will need
WebSocket connections to IIS In-Process servers will close after the client sends ~30MB of data.
To workaround this issue you can host your app with the [OutOfProcess](https://docs.microsoft.com/aspnet/core/host-and-deploy/aspnet-core-module?view=aspnetcore-3.0#out-of-process-hosting-model) hosting model. Or you can change the `MaxRequestBodySize` limit in your app during configuration:
To workaround this issue you can host your app with the [OutOfProcess](https://docs.microsoft.com/aspnet/core/host-and-deploy/aspnet-core-module?view=aspnetcore-3.0#out-of-process-hosting-model) hosting model. Or you can change the `MaxRequestBodySize` limit in your app when handling WebSocket requests by adding the following to your middleware pipeline:
```csharp
var builder = new WebHostBuilder()
.UseIIS()
.ConfigureServices(services =>
app.Use(next => context =>
{
if (context.WebSockets.IsWebSocketRequest)
{
services.Configure<IISServerOptions>(options => options.MaxRequestBodySize = long.MaxValue);
});
context.Features.Get<IHttpMaxRequestBodySizeFeature>()?.MaxRequestBodySize = null;
}
return next(context);
});
```
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