こんにちは、javascript を使用して gplus-api サインインの学習を始めたばかりですが、「DOMWindow」で「postMessage」を実行できませんでした: The target origin provided ('file://') does not match the recipient window's originというエラーに遭遇しました（'ヌル'）。 これは私がこのサイトを参照した私のコードですが、助けにはなりませんでした! https://developers.google.com/+/web/signin/javascript-flow
私のコード
<!DOCTYPE HTML>
<html>
<head></head>
<body>
<script src="https://apis.google.com/js/client:platform.js" async defer></script>
<meta name="google-signin-clientid" content="MY_CLIENT_ID.apps.googleusercontent.com">
<meta name="google-signin-scope" content="https://www.googleapis.com/auth/plus.login" />
<meta name="google-signin-requestvisibleactions" content="http://schema.org/AddAction" />
<meta name="google-signin-cookiepolicy" content="single_host_origin" />
<script type="text/javascript">
(function(){
var po = document.createElement('script');
po.type = "text/javascript";
po.async = true;
po.src = "https://apis.google.com/js/client:plusone.js";
var s = document.getElementByTagName('script');
s.parentNode.insertBefore(po,s);
});
function render() {
// Additional params including the callback, the rest of the params will
// come from the page-level configuration.
var additionalParams = {
'callback': signinCallback
};
// Attach a click listener to a button to trigger the flow.
var signinButton = document.getElementById('signinButton');
signinButton.addEventListener('click', function() {
gapi.auth.signIn(additionalParams); // Will use page level configuration
});
}
function signinCallback(authResult) {
if (authResult['status']['signed_in']) {
// Update the app to reflect a signed in user
// Hide the sign-in button now that the user is authorized, for example:
document.getElementById('signinButton').setAttribute('style', 'display: none');
} else {
// Update the app to reflect a signed out user
// Possible error values:
// "user_signed_out" - User is signed-out
// "access_denied" - User denied access to your app
// "immediate_failed" - Could not automatically log in the user
console.log('Sign-in state: ' + authResult['error']);
}
}
</script>
<button id="signinButton">Sign in with Google</button>
</body>
</html>
私の js オリジンはhttp://localhost:8080です。また、この URL を読み込もうとすると 404 エラーが発生 します。このエラーの解決を手伝ってください!