How can I resolve CORS issues in ASP.NET Core?

How can I resolve CORS issues in ASP.NET Core?

To resolve CORS issues in ASP.NET Core, you need to configure the CORS policy in your Startup.cs file.

What specific code do I need to add for the CORS policy?

You can add the following code in the ConfigureServices method: services.AddCors(options => { options.AddPolicy("AllowAll", builder => { builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader(); }); });

Where do I apply this policy in the pipeline?

You should apply the CORS policy in the Configure method by adding app.UseCors("AllowAll"); before app.UseRouting();.

Are there any security concerns with allowing all origins?

Yes, allowing all origins can expose your API to security risks. It's better to specify allowed origins.