1 files changed, 11 insertions, 0 deletions
diff --git a/webAO/utils/fileExistsSync.js b/webAO/utils/fileExistsSync.js
new file mode 100644
index 0000000..1d7fde2
--- /dev/null
+++ b/webAO/utils/fileExistsSync.js
@@ -0,0 +1,11 @@
+const fileExistsSync = (url) => {
+  try {
+    const http = new XMLHttpRequest();
+    http.open('HEAD', url, false);
+    http.send();
+    return http.status != 404;
+  } catch (e) {
+    return false;
+  }
+};
+export default fileExistsSync;