callfromjs issue on ios and also question debugging log on ios platform

Hi,

I am developing mobile app which integrate gree/webview. when I develop android platform web view work perfect and callfromJS can work. However, when I migrate project to ios  unity process cannot receive following callfromjs event. 

page url:
https://www.womo.com.tw/?unity_logout=1

javascript like this...

` const urlParams = new URLSearchParams(window.location.search);
if (urlParams.has('unity_logout')) {
unityLogout();
}

function unityLogout() {
  var message = {
      action: "log_out",
      timestamp: new Date().toISOString()
  };
  var jsonString = JSON.stringify(message);
  window.Unity.call(jsonString);
}`

I also try to use Safari and open web inspector to check about javascript log, but I cannot find webview app in develop tab. can you guide me how to check this?

Any information will be appreciated.

Andy

Start by reproducing the iOS behavior with the supplied URL and the JavaScript Unity.call snippet, then investigate how the webview is exposed to Safari Web Inspector. The report names no source files or tests; done would mean identifying the iOS event or inspection failure and documenting a verified debugging path.