مشکل Failed to fetch

[li_rahmani]

در خصوص این مشکل ، با افزودن header به api
<?php
header(‘Access-Control-Allow-Origin: *’);
header(“Access-Control-Allow-Methods: HEAD, GET, POST, PUT, PATCH, DELETE, OPTIONS”);
header(“Access-Control-Allow-Headers: *”);
include ‘connect.php’;
$query=”SELECT * FROM tb_student“;
$r=$db->query($query);

if($r->rowCount()>0){

while($row[]=$r->fetch(PDO::FETCH_ASSOC)){
$item=$row;
$json=json_encode($item);
}
}
else{
echo “no result found”;
}
echo $json;
?>
مشکل حل شد.

[li_rahmani]

درود
وقت بخیر
من برای ارسال request با fetch با این خطا مواجه می شم:
fetch(http://192.168.8.100/student/user_login_3.php, {
method: ‘GET’,
headers: {
Accept: ‘application/json’,
‘Content-Type’: ‘application/json’,
‘Access-Control-Allow-Origin’: ‘*’,
‘Access-Control-Allow-Headers’:’*’,
‘Access-Control-Allow-Methods’:’*’,
},
———————–
Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.
If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled.
TypeError: Failed to fetch
می شه لطفا منو راهنمایی بفرمائید.
سپاسگذارم

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