Fix bug: use "System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping" encoder for responses examples

Author: Chebotov Nikolay

CHANGELOG.md

@@ -8,6 +8,10 @@
 
 These are the changes to each version that has been released on the [nuget](https://www.nuget.org/packages/Unchase.Swashbuckle.AspNetCore.Extensions/).
 
+## v2.1.1 `(2020-02-19)`
+
+- [x] Fix bug: use `System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping` encoder for responses examples
+
 ## v2.1.0 `(2020-02-19)`
 
 - [x] Add `ChangeAllResponsesByHttpStatusCode<T>` extension method for `SwaggerGenOptions` allows to change all responses by specific http status codes in OpenApi document

src/Unchase.Swashbuckle.AspNetCore.Extensions/Filters/ChangeResponseByHttpStatusCodeDocumentFilter.cs

@@ -92,7 +92,14 @@ public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
                                     break;
                                 case ResponseExampleOptions.AddNew:
                                     if (this._responseExample != null)
-                                        jsonContent.Example = new OpenApiString(System.Text.Json.JsonSerializer.Serialize(this._responseExample, new System.Text.Json.JsonSerializerOptions { WriteIndented = true }));
+                                    {
+                                        jsonContent.Example = new OpenApiString(System.Text.Json.JsonSerializer.Serialize(this._responseExample, 
+                                            new System.Text.Json.JsonSerializerOptions
+                                            {
+                                                WriteIndented = true,
+                                                Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping
+                                            }));
+                                    }
                                     jsonContent.Schema = schema;
                                     break;
                                 case ResponseExampleOptions.None:
@@ -109,7 +116,12 @@ public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
                                     {
                                         response.Value.Content.Add("application/json", new OpenApiMediaType()
                                         {
-                                            Example = new OpenApiString(System.Text.Json.JsonSerializer.Serialize(this._responseExample, new System.Text.Json.JsonSerializerOptions { WriteIndented = true })),
+                                            Example = new OpenApiString(System.Text.Json.JsonSerializer.Serialize(this._responseExample, 
+                                                new System.Text.Json.JsonSerializerOptions 
+                                                { 
+                                                    WriteIndented = true, 
+                                                    Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping 
+                                                })),
                                             Schema = schema
                                         });
                                     }