koobas.hobune.stream
How can I bypass CORS with Unity WebGL?
Hello, I am trying to read and write from a file. I uploaded my WebGL build to Itch.io. I have my server running on my Mac Terminal, it is at localhost:9000. When I run the game on Itch.io I get this error:
Access to XMLHttpRequest at 'http://localhost:9000/getlevellist.php' from origin 'https://v6p9d9t4.ssl.hwcdn.net' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
My C#:
UnityWebRequest www = UnityWebRequest.Get("http://localhost:9000/getlevellist.php"); yield return www.SendWebRequest();
My PHP:
<?php
/*if (isset($_SERVER['HTTPS_ORIGIN'])) {
header("Access-Control-Allow-Origin: {$_SERVER['HTTPS_ORIGIN']}");
header('Access-Control-Allow-Credentials: true');
//header('Access-Control-Max-Age: 86400');
}
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
if (isset($_SERVER['HTTPS_ACCESS_CONTROL_REQUEST_METHOD']))
// may also be using PUT, PATCH, HEAD etc
header("Access-Control-Allow-Methods: GET, POST, OPTIONS");
if (isset($_SERVER['HTTPS_ACCESS_CONTROL_REQUEST_HEADERS']))
header("Access-Control-Allow-Headers: {$_SERVER['HTTPS_ACCESS_CONTROL_REQUEST_HEADERS']}");
exit(0);
}*/
//header ("Access-Control-Allow-Origin: *");
//$text1 = $_POST["Data"];
$file = fopen("ListLevel", "r");
//echo fread($file, filesize("ListLevel"));
echo file_get_contents("ListLevel");
fclose($file);
?>
How can I resolve this and bypass CORS? Thank you in advance.
@misher
I've seen things about headers before, but I have no idea where to put it. Do I put it in my Mac Terminal (because it's my server), or do I put it in my PHP. I tried putting it there, but the PHP script is run every second, and it gave me an error. Where and how do I implement the header?
I can't help you bypass CORS, but let me ask you this: assuming that you did get it working, what's your next step? I mean, you can't really expect everyone who wants to run the game, to have a PHP server running on their local machine, right? So what's the plan to deal with that? Are you going to host your PHP on a publicly addressable server? Or replace the PHP component with something else? Heck, you could just ditch the PHP altogether and put the ListLevel file on a public server directly.
Whatever it is, maybe you should just go ahead and start implementing that, instead of wasting time on a temporary problem.,I can't help you bypass CORS, but let me ask you this: assuming that you did get it working, what's your next step? I mean, you can't really expect everyone who wants to run the game, to have a PHP server running on their local machine, right? So what's the plan to deal with that? Are you going to host your PHP on a publicly addressable server? Or replace the PHP component with something else? Heck, you could just ditch the PHP altogether and put the ListLevel file on a public server directly.
Whatever it is, maybe you should just ahead and start implementing that, instead of wasting time on a temporary problem.
I cannot afford a server right now, but even if I could wouldn't I have to still go through CORS. Changing my server just changes the address. Am I wrong?
To allow your origin you just add it like this:
header("Access-Control-Allow-Origin: Itch.io");
Or you can allow all origins like this:
header("Access-Control-Allow-Origin: *");
