diff --git a/ios/RNCWebView.m b/ios/RNCWebView.m
index a3aecb6..e6b305d 100644
--- a/ios/RNCWebView.m
+++ b/ios/RNCWebView.m
@@ -119,10 +119,10 @@ - (void)didMoveToWindow
     WKWebViewConfiguration *wkWebViewConfig = [WKWebViewConfiguration new];
     WKPreferences *prefs = [[WKPreferences alloc]init];
     [prefs setValue:@TRUE forKey:@"allowFileAccessFromFileURLs"];
-    [wkWebViewConfig setValue:@TRUE forKey:@"allowUniversalAccessFromFileURLs"];
+    [wkWebViewConfig setValue:@"TRUE" forKey:@"allowUniversalAccessFromFileURLs"];
+    wkWebViewConfig.preferences = prefs;
     if (!_javaScriptEnabled) {
       prefs.javaScriptEnabled = NO;
-      wkWebViewConfig.preferences = prefs;
     }
     if (_incognito) {
       wkWebViewConfig.websiteDataStore = [WKWebsiteDataStore nonPersistentDataStore];