posting a message to webview doesnt work

Hi ! I was sending a message to my WebView like this :

    this.myWebView.postMessage(
      JSON.stringify({
        messageType: "handleServerResponse",
        responseData: json,
        requestId
      })
    );

but after the upgrade it has stopped working, and now i’m trying to use the injectJavaScript instead.

This is what i am trying to do :

    const injectedJS= `
      window.postMessage("${JSON.stringify({
        messageType: "handleServerResponse",
        responseData: json,
        requestId
      })}"); 
    true;`
   this.myWebView.injectJavaScript(injectedJS)

but the message is not received on the WebView side, communication from the WebView to the app it self by using window.ReactNativeWebView.postMessage(data); is working fine.

please help

[adophp]

@MaxToyberman

https://stackoverflow.com/questions/41160221/react-native-webview-postmessage-does-not-work#

document.addEventListener("message", ... and window.addEventListener("message",    

i used

window.addEventListener("message", function(){});

is worked.

[MaxToyberman]

ok, i have found a solution but i am not sure this is the best way.

    this. myWebView.injectJavaScript(`
    (function(){
      window.postMessage('${data}','*');
    })();
    true;
    `)