Add request-failure event

fetch-mixin.js

@@ -50,6 +50,7 @@ export const fetchMixin = function(superClass) {
         statusCode = resp.status;
         if (resp.status !== 200) {
           document.dispatchEvent(new CustomEvent('request-error', { detail: resp, bubbles: true, composed: true }));
+          return { statusCode };
         }
 
         return await resp.json();
@@ -58,6 +59,11 @@ export const fetchMixin = function(superClass) {
           return { statusCode: -1, error: err };
         } else {
           this.__abortControllers.delete(`${method}:${url}`);
+
+          if (statusCode === null) {
+            document.dispatchEvent(new CustomEvent('request-failure', { detail: err, bubbles: true, composed: true }));
+          }
+
           return { statusCode, error: err };
         }
       }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@tp/helpers",
-  "version": "2.9.0",
+  "version": "2.10.0",
   "description": "",
   "main": "closest.js",
   "scripts": {