diff --git a/package-lock.json b/package-lock.json
index 9379175..7e3ca4e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,9 @@
       "name": "dicomweb-client",
       "version": "0.8.4",
       "license": "MIT",
+      "dependencies": {
+        "xhr2": "^0.2.1"
+      },
       "devDependencies": {
         "@babel/core": "^7.1.0",
         "@babel/preset-env": "^7.1.0",
@@ -5422,6 +5425,14 @@
         "async-limiter": "~1.0.0"
       }
     },
+    "node_modules/xhr2": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.2.1.tgz",
+      "integrity": "sha512-sID0rrVCqkVNUn8t6xuv9+6FViXjUVXq8H5rWOH2rz9fDNQEd4g0EA2XlcEdJXRz5BMEn4O1pJFdT+z4YHhoWw==",
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/y18n": {
       "version": "5.0.8",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
@@ -9666,6 +9677,11 @@
         "async-limiter": "~1.0.0"
       }
     },
+    "xhr2": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.2.1.tgz",
+      "integrity": "sha512-sID0rrVCqkVNUn8t6xuv9+6FViXjUVXq8H5rWOH2rz9fDNQEd4g0EA2XlcEdJXRz5BMEn4O1pJFdT+z4YHhoWw=="
+    },
     "y18n": {
       "version": "5.0.8",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
diff --git a/package.json b/package.json
index 0a2da4a..d6cf1f3 100644
--- a/package.json
+++ b/package.json
@@ -48,5 +48,8 @@
     "rollup": "^0.63.2",
     "rollup-plugin-babel": "^4.0.3",
     "typescript": "^4.8.4"
+  },
+  "dependencies": {
+    "xhr2": "^0.2.1"
   }
 }
diff --git a/src/api.js b/src/api.js
index a409229..9e3e0bc 100644
--- a/src/api.js
+++ b/src/api.js
@@ -1,3 +1,5 @@
+import XMLHttpRequest from 'xhr2';
+
 import { multipartEncode, multipartDecode } from './message.js';
 
 function isObject(obj) {