1 files changed, 16 insertions, 6 deletions
diff --git a/webAO/utils/fileExists.js b/webAO/utils/fileExists.js
index 6d32a1e..7978cbc 100644
--- a/webAO/utils/fileExists.js
+++ b/webAO/utils/fileExists.js
@@ -1,8 +1,18 @@
-const fileExists = async (url) => {
+const fileExists = async (url) => new Promise((resolve, reject) => {
   const xhr = new XMLHttpRequest();
-  xhr.open('HEAD', url, false);
-  xhr.send();
-
-  return xhr.status === 200;
-};
+  xhr.open('HEAD', url);
+  xhr.onload = function (e) {
+    if (xhr.readyState === 4) {
+      if (xhr.status === 200) {
+        resolve(true);
+      } else {
+        resolve(false);
+      }
+    }
+  };
+  xhr.onerror = function (e) {
+    resolve(false);
+  };
+  xhr.send(null);
+});
 export default fileExists;