diff --git a/packages/mock-addon-docs/stories/docs/advanced-setup.mdx b/packages/mock-addon-docs/stories/docs/advanced-setup.mdx
index 22c8d24..74ae9fb 100644
--- a/packages/mock-addon-docs/stories/docs/advanced-setup.mdx
+++ b/packages/mock-addon-docs/stories/docs/advanced-setup.mdx
@@ -1,5 +1,6 @@
 
 import { Meta } from '@storybook/addon-docs';
+import { Markdown } from '@storybook/blocks';
 import { Footer } from './footer';
 
 <Meta title="Docs/Advanced setup" />
@@ -19,15 +20,15 @@ import { Footer } from './footer';
 You can set <strong>global configuration</strong> for the addon. Go to the `.storybook/preview.jsx` file and add `mockAddonConfigs` fields with the following properties.
 
 
-
+<Markdown>{`
 | Property                 | Description                                                                    | Default |
 | ------------------------ | :----------------------------------------------------------------------------- | :------ |
-| `globalMockData`         | An array of mock objects which will add in every story                         | []      |
-| `ignoreQueryParams`      | Whether or not to ignore query parameters globally                             | false   |
-| `refreshStoryOnUpdate`   | This property re-renders the story if there's any data changes                 | false   |
-| `disableUsingOriginal`   | This property disables the toggle (on/off) option to use the original endpoint | false   |
-| `disable`                | This property disables the panel from all the stories                          | false   |
-
+| \`globalMockData\`         | An array of mock objects which will add in every story                         | []      |
+| \`ignoreQueryParams\`      | Whether or not to ignore query parameters globally                             | false   |
+| \`refreshStoryOnUpdate\`   | This property re-renders the story if there's any data changes                 | false   |
+| \`disableUsingOriginal\`   | This property disables the toggle (on/off) option to use the original endpoint | false   |
+| \`disable\`                | This property disables the panel from all the stories                          | false   |
+`}</Markdown>
 
 ```js
 export const parameters = {
@@ -136,7 +137,7 @@ FetchCall.parameters = {
         method: 'GET',
         status: 200,
         response: (request) => {
-            const { body, searchParams } = request;
+            const { body, headers, searchParams } = request;
 
             if (searchParams.id == 1) {
                 return {
@@ -146,6 +147,10 @@ FetchCall.parameters = {
                 return {
                     data: 'Custom data for name mock',
                 };
+            } else if (headers.get("Accept-Language") === 'fr-FR') {
+                return {
+                    data: 'Données personnalisées en français',
+                };
             }
             return {
                 data: 'Default data',
diff --git a/packages/mock-addon-docs/stories/docs/installation-setup.mdx b/packages/mock-addon-docs/stories/docs/installation-setup.mdx
index f4a1941..0949364 100644
--- a/packages/mock-addon-docs/stories/docs/installation-setup.mdx
+++ b/packages/mock-addon-docs/stories/docs/installation-setup.mdx
@@ -1,5 +1,6 @@
 
 import { Meta } from '@storybook/addon-docs';
+import { Markdown } from '@storybook/blocks';
 import LinkTo from '@storybook/addon-links/react';
 import { Footer } from './footer';
 
@@ -80,13 +81,15 @@ export const FetchCall = Template.bind({});
 
 Each mock object contains the following properties.
 
-| Property   | Description                                                                                 | Required | Default |
-| ---------- | :------------------------------------------------------------------------------------------ | :------- | :------ |
-| `url`      | Supports both **named parameters** (`/:foo/:bar`) and **query parameters**.(`/foo?bar=true`) | true        |    -    |
-| `method`   | Supports `GET`, `POST`, `PUT`, `PATCH` and `DELETE` methods.                                                   |    true    | - |
-| `status`   | All possible [HTTP status codes](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status).                                                              |     true   |  -  |
-| `response` | A valid JSON format(Array or Object) or function. <br/> Response function is a function that contains request object as a parameter. See the **Custom Response** section for example.  | true        |    -    |
-| `delay`    | Emulate delayed response time in milliseconds.                                              |     -    | `0`     |
+<Markdown>{`
+| Property     | Description                                                                                                                                                                           | Required | Default |
+|--------------|-:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-:--------|-:-------|
+| \`url\`      | Supports both **named parameters** (\`/:foo/:bar\`) and **query parameters**.(\`/foo?bar=true\`)                                                                                      | true     | -       |
+| \`method\`   | Supports \`GET\`, \`POST\`, \`PUT\`, \`PATCH\` and \`DELETE\` methods.                                                                                                                | true     | -       |
+| \`status\`   | All possible [HTTP status codes](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status).                                                                                           | true     | -       |
+| \`response\` | A valid JSON format(Array or Object) or function. <br/> Response function is a function that contains request object as a parameter. See the **Custom Response** section for example. | true     | -       |
+| \`delay\`    | Emulate delayed response time in milliseconds.                                                                                                                                        | -        | \`0\`   |
+`}</Markdown>
 
 
 <br />
diff --git a/packages/mock-addon/src/utils/faker.js b/packages/mock-addon/src/utils/faker.js
index 9c27c66..7bf1513 100644
--- a/packages/mock-addon/src/utils/faker.js
+++ b/packages/mock-addon/src/utils/faker.js
@@ -167,12 +167,13 @@ export class Faker {
 
     mockXhrRequest = (request) => {
         const { method, url, body } = request;
+        const requestHeaders = request?.requestHeaders?._headers;
         const matched = this.matchMock(url, method);
         if (matched) {
             const { response, status, delay = 0 } = matched;
             setTimeout(() => {
                 if (typeof response === 'function') {
-                    const data = response(new Request(url, { method, body }));
+                    const data = response(new Request(url, { method, body, headers: requestHeaders }));
                     request.respond(
                         +status,
                         defaultResponseHeaders,
diff --git a/packages/mock-addon/src/utils/request.js b/packages/mock-addon/src/utils/request.js
index eb9d2db..dce6b0d 100644
--- a/packages/mock-addon/src/utils/request.js
+++ b/packages/mock-addon/src/utils/request.js
@@ -4,11 +4,13 @@ export function Request(input, options = {}) {
     if (typeof input === 'object') {
         this.method = options.method || input.method || 'GET';
         this.url = input.url;
+        this.headers = options.headers || input.headers || null;
         this.body = options.body || input.body || null;
         this.signal = options.signal || input.signal || null;
     } else {
         this.method = options.method || 'GET';
         this.url = input;
+        this.headers = options.headers || null;
         this.body = options.body || null;
         this.signal = options.signal || null;
     }