Enable CORS on all endpoints

Program.cs

@@ -30,9 +30,23 @@ try
         if (apiKeysTemp != null) apiKeys = apiKeysTemp;
     }
 }
-catch {}
+catch { }
 builder.Services.AddSingleton<IApiKeyValidator, ApiKeyValidator>(_ => new ApiKeyValidator(apiKeys));
 
+//setup CORS if origins were supplied in the config file
+string[]? allowedOrigins = builder.Configuration.GetValue<string[]>("AllowedOrigins");
+if (allowedOrigins != null)
+{
+    builder.Services.AddCors(options =>
+    {
+        options.AddPolicy(name: "AllowedOrigins",
+                          policy =>
+                          {
+                              policy.WithOrigins(allowedOrigins);
+                          });
+    });
+}
+
 // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen(c =>
@@ -64,13 +78,21 @@ builder.Services.AddSwaggerGen(c =>
 
 var app = builder.Build();
 
+//
 // Configure the HTTP request pipeline.
+//
+
 // if (app.Environment.IsDevelopment())
 // {
 app.UseSwagger();
 app.UseSwaggerUI();
 // }
 
+if (allowedOrigins != null)
+{
+    app.UseCors();
+}
+
 app.UseAuthentication();
 
 app.UseAuthorization();