Object utilities (#729)

* Create utilities

* Rename old isObject

* Use new isObject

* Remove old function

* Add additional function

* Simplify for now

* Rename function for clarity

* Rename function

* Expand type

* Update eslint

1 files changed, 2 insertions, 2 deletions

diff --git a/ext/js/background/offscreen-proxy.js b/ext/js/background/offscreen-proxy.js
index 102a9eed..59d1291e 100644
--- a/ext/js/background/offscreen-proxy.js
+++ b/ext/js/background/offscreen-proxy.js
@@ -17,7 +17,7 @@
  */
 
 import {ExtensionError} from '../core/extension-error.js';
-import {isObject} from '../core/utilities.js';
+import {isObjectNotArray} from '../core/object-utilities.js';
 import {base64ToArrayBuffer} from '../data/sandbox/array-buffer-util.js';
 
 /**
@@ -123,7 +123,7 @@ export class OffscreenProxy {
         if (typeof runtimeError !== 'undefined') {
             throw new Error(runtimeError.message);
         }
-        if (!isObject(response)) {
+        if (!isObjectNotArray(response)) {
             throw new Error('Offscreen document did not respond');
         }
         const responseError = response.error;