Can't show LaTEX text on iOS

[hnvmeta]

I have met this issue when I run on iOS but it works well on Android: "Invalid argument(s): Result of JavaScript execution returned a null value. Use runJavascript when expecting a null return value.
flutter:
#0 WebKitWebViewController.runJavaScriptReturningResult (package:webview_flutter_wkwebview/src/webkit_webview_controller.dart:480:7)"

flutter_tex: ^4.0.6

[simratsatiaofficial]

Facing the same issue here