diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index 8f494166..31d29a20 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -94,7 +94,7 @@ class Backend {
             ['commandExec', {handler: this._onApiCommandExec.bind(this), async: false}],
             ['audioGetUri', {handler: this._onApiAudioGetUri.bind(this), async: true}],
             ['screenshotGet', {handler: this._onApiScreenshotGet.bind(this), async: true}],
-            ['forward', {handler: this._onApiForward.bind(this), async: true}],
+            ['forward', {handler: this._onApiForward.bind(this), async: false}],
             ['frameInformationGet', {handler: this._onApiFrameInformationGet.bind(this), async: true}],
             ['injectStylesheet', {handler: this._onApiInjectStylesheet.bind(this), async: true}],
             ['getEnvironmentInfo', {handler: this._onApiGetEnvironmentInfo.bind(this), async: true}],
@@ -569,13 +569,13 @@ class Backend {
 
     _onApiForward({action, params}, sender) {
         if (!(sender && sender.tab)) {
-            return Promise.resolve();
+            return false;
         }
 
         const tabId = sender.tab.id;
-        return new Promise((resolve) => {
-            chrome.tabs.sendMessage(tabId, {action, params}, (response) => resolve(response));
-        });
+        const callback = () => this.checkLastError(chrome.runtime.lastError);
+        chrome.tabs.sendMessage(tabId, {action, params}, callback);
+        return true;
     }
 
     _onApiFrameInformationGet(params, sender) {