diff --git a/umap/static/umap/js/modules/global.js b/umap/static/umap/js/modules/global.js
index 82bd5c07..381b5497 100644
--- a/umap/static/umap/js/modules/global.js
+++ b/umap/static/umap/js/modules/global.js
@@ -1,9 +1,9 @@
 import * as L from '../../vendors/leaflet/leaflet-src.esm.js'
 import URLs from './urls.js'
-import { Request, ServerRequest, HTTPError, NOKError } from './request.js'
+import { Request, ServerRequest, RequestError, HTTPError, NOKError } from './request.js'
 // Import modules and export them to the global scope.
 // For the not yet module-compatible JS out there.
 
 // Copy the leaflet module, it's expected by leaflet plugins to be writeable.
 window.L = { ...L }
-window.umap = { URLs, Request, ServerRequest, HTTPError, NOKError }
+window.umap = { URLs, Request, ServerRequest, RequestError, HTTPError, NOKError }
diff --git a/umap/static/umap/js/modules/request.js b/umap/static/umap/js/modules/request.js
index ec5c8d87..c9c5fc35 100644
--- a/umap/static/umap/js/modules/request.js
+++ b/umap/static/umap/js/modules/request.js
@@ -1,14 +1,17 @@
 // Uses `L._`` from Leaflet.i18n which we cannot import as a module yet
 import { Evented, DomUtil } from '../../vendors/leaflet/leaflet-src.esm.js'
 
-export class HTTPError extends Error {
+
+export class RequestError extends Error {}
+
+export class HTTPError extends RequestError {
   constructor(message) {
     super(message)
     this.name = this.constructor.name
   }
 }
 
-export class NOKError extends Error {
+export class NOKError extends RequestError {
   constructor(response) {
     super(response.status)
     this.response = response