diff --git a/dev/Remote/AbstractFetch.js b/dev/Remote/AbstractFetch.js
index 2165a336c..c317cc4a7 100644
--- a/dev/Remote/AbstractFetch.js
+++ b/dev/Remote/AbstractFetch.js
@@ -67,14 +67,7 @@ fetchJSON = (action, sGetAdd, params, timeout, jsonCallback) => {
 		oRequests[action] = controller;
 		init.signal = controller.signal;
 	}
-	return rl.fetchJSON(getURL(sGetAdd), init, sGetAdd ? null : params)
-	.then(jsonCallback)
-	.catch(err => {
-		if (err.name == 'AbortError') { // handle abort()
-			err = Notification.JsonAbort;
-		}
-		return Promise.reject(err);
-	});
+	return rl.fetchJSON(getURL(sGetAdd), init, sGetAdd ? null : params).then(jsonCallback);
 };
 
 addEventListener('unload', () => bUnload = true);
@@ -103,7 +96,7 @@ export class AbstractFetchRemote
 			abortActions.forEach(actionToAbort => abort(actionToAbort));
 		}
 
-		return fetchJSON(sAction, sGetAdd,
+		fetchJSON(sAction, sGetAdd,
 			params,
 			undefined === iTimeout ? 30000 : pInt(iTimeout),
 			data => {
@@ -163,7 +156,11 @@ export class AbstractFetchRemote
 						break;
 				}
 			}
-		);
+		)
+		.catch(err => {
+			console.error(err);
+			fCallback && fCallback(err.name == 'AbortError' ? Notification.JsonAbort : StorageResultType.Error);
+		});
 	}
 
 	/**
diff --git a/dev/Remote/Admin/Fetch.js b/dev/Remote/Admin/Fetch.js
index e62c66947..d8ef53928 100644
--- a/dev/Remote/Admin/Fetch.js
+++ b/dev/Remote/Admin/Fetch.js
@@ -128,7 +128,7 @@ class RemoteAdminFetch extends AbstractFetchRemote {
 	 * @param {boolean} bDisabled
 	 */
 	domainDisable(fCallback, sName, bDisabled) {
-		return this.defaultRequest(fCallback, 'AdminDomainDisable', {
+		this.defaultRequest(fCallback, 'AdminDomainDisable', {
 			Name: sName,
 			Disabled: bDisabled ? 1 : 0
 		});
@@ -139,7 +139,7 @@ class RemoteAdminFetch extends AbstractFetchRemote {
 	 * @param {Object} oConfig
 	 */
 	pluginSettingsUpdate(fCallback, oConfig) {
-		return this.defaultRequest(fCallback, 'AdminPluginSettingsUpdate', oConfig);
+		this.defaultRequest(fCallback, 'AdminPluginSettingsUpdate', oConfig);
 	}
 
 	/**
@@ -148,7 +148,7 @@ class RemoteAdminFetch extends AbstractFetchRemote {
 	 * @param {boolean} bDisabled
 	 */
 	pluginDisable(fCallback, sName, bDisabled) {
-		return this.defaultRequest(fCallback, 'AdminPluginDisable', {
+		this.defaultRequest(fCallback, 'AdminPluginDisable', {
 			Name: sName,
 			Disabled: bDisabled ? 1 : 0
 		});
diff --git a/dev/Remote/User/Fetch.js b/dev/Remote/User/Fetch.js
index c02954f91..936a2d7eb 100644
--- a/dev/Remote/User/Fetch.js
+++ b/dev/Remote/User/Fetch.js
@@ -340,7 +340,7 @@ class RemoteUserFetch extends AbstractFetchRemote {
 			};
 		}
 
-		return this.defaultRequest(
+		this.defaultRequest(
 			fCallback,
 			'MessageList',
 			params,
diff --git a/dev/bootstrap.js b/dev/bootstrap.js
index a9c453f0d..10834a00e 100644
--- a/dev/bootstrap.js
+++ b/dev/bootstrap.js
@@ -109,8 +109,7 @@ export default (App) => {
 
 		return fetch(resource, init).then(response => {
 			if (!response.ok) {
-//				return Promise.reject('Network response error: ' + response.status);
-				throw new Error('Network response error: ' + response.status);
+				return Promise.reject('Network response error: ' + response.status);
 			}
 			/* TODO: use this for non-developers?
 			response.clone()