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has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.
<![CDATA[response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Allow-Methods", "GET,HEAD,OPTIONS,POST,PUT");
response.setHeader("Access-Control-Allow-Headers", "Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers");
]]>
Angular Laravel has been blocked by CORS policy: Request header field x-requested-with is not allowed by Access-Control-Allow-Headers in preflight response.
<![CDATA[namespace App\Http\Middleware;
use Closure;
class Cors
{
public function handle($request, Closure $next)
{
$response = $next($request);
$response->header('Access-Control-Allow-Methods', 'HEAD, GET, POST, PUT, DELETE');
$response->header('Access-Control-Allow-Headers', $request->header('Access-Control-Request-Headers'));
$response->header('Access-Control-Allow-Origin', '*');
return $response;
}
}]]>
Access to XMLHttpRequest at 'http://localhost/MySQL_pracs/InsertUser.php' from origin 'http://localhost:4200' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.
<![CDATA[//Access to XMLHttpRequest at 'http://localhost/[api path].php' from origin 'http://localhost:4200' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.
//The error is simply saying that "Content-Type" is missing from "Access-Control-Allow-Headers".
//Therefore we need to add "Content-Type" to "Access-Control-Allow-Headers".
<?php
header('Access-Control-Allow-Headers: Content-Type');
-----
?>]]>
has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response
<![CDATA[var dataToSend = ' {"firstname": "' + form.vals().FirstName + '","lastname": "' + form.vals().LastName + '","email": "' + form.vals().Email + '"}';
var xhr = new XMLHttpRequest();
xhr.open('POST', 'https://exampleurl');
xhr.setRequestHeader('Content-type','application/json');
xhr.send(dataToSend);
xhr.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
console.log(this.responseText);
}
};
xhr.setRequestHeader("Access-Control-Allow-Origin", "*");
xhr.setRequestHeader("Access-Control-Allow-Credentials", "true");
xhr.setRequestHeader("Access-Control-Allow-Methods", "GET,HEAD,OPTIONS,POST,PUT");
xhr.setRequestHeader("Access-Control-Allow-Headers", "Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers");]]>
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