Add custom http header

Author: nip24pl

example-web/package.json

@@ -1,6 +1,6 @@
 {
   "name": "nip24client-example-web",
-  "version": "1.3.2",
+  "version": "1.3.3",
   "description": "NIP24 Client for Javascript - web browser example",
   "author": "",
   "license": "Apache-2.0",

example/package.json

@@ -1,6 +1,6 @@
 {
   "name": "nip24client-example",
-  "version": "1.3.2",
+  "version": "1.3.3",
   "description": "NIP24 Client for Javascript - node.js example",
   "author": "",
   "license": "Apache-2.0",

lib/nip24client.js

@@ -48,7 +48,7 @@ const VATStatus = require('./vatstatus');
 const WLStatus = require('./wlstatus');
 
 
-NIP24Client.prototype.VERSION = '1.3.2';
+NIP24Client.prototype.VERSION = '1.3.3';
 
 NIP24Client.prototype.PRODUCTION_URL = 'https://www.nip24.pl/api';
 NIP24Client.prototype.TEST_URL = 'https://www.nip24.pl/api-test';
@@ -159,11 +159,14 @@ function userAgent(nip24)
  */
 function get(nip24, url)
 {
+	const agent = userAgent(nip24);
+
 	return maxios.get(url, {
 			headers: {
 				'Accept': 'application/xml',
 				'Authorization': auth(nip24, 'GET', url),
-				'User-Agent': userAgent(nip24)
+				'User-Agent': agent,
+				'X-NIP24-Client': agent
 			}
 		}).then(response => {
 			return new mxmldom.DOMParser().parseFromString(response.data);

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "nip24client",
-  "version": "1.3.2",
+  "version": "1.3.3",
   "description": "NIP24 Client for JavaScript",
   "keywords": [
     "nip24",